The theory that says earths continents once made up an ancient supercontinent, and have been drifting apart ever since is called the theory of Continental Drift.
Continental drift is the movement of Earth's continents relative to one another, thus appearing to "drift" across the ocean bed. It was the first hypothesis to explain the origins of continents and oceans in the late 19th century, gaining widespread acceptance in the 1950s and 60s.
The concept of continental drift was suggested by Alfred Wegener in 1912, and although his hypothesis was dismissed at the time, it laid the groundwork for modern plate tectonic theory.
The theory was founded on the idea that Earth's continents were once united in a supercontinent called Pangaea, which broke apart 200 million years ago and slowly drifted to their current positions over time.
This idea was supported by evidence from fossil records, geological features, and similarities in rock formations between continents that could only be explained by them once being connected.
The Continental Drift Theory was a fundamental contribution to the field of geology and helped to shape our current understanding of Earth's history and the formation of the continents.
It is now widely accepted as a scientific fact, supported by various geologic and geophysical pieces of evidence, and forms the basis for modern plate tectonics theory.
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which of the following would cause the evaporation rate to decrease? question 22 options: increased wind speed increased temperature increased water availability increased relative humidity
In contrast to increased wind speed, temperature, and water availability, increased relative humidity would result in a decrease in evaporation rate.
The amount of water vapor in the air as compared to the maximum amount that can exist at a particular temperature is known as relative humidity. The amount of water vapor in the air increases when the relative humidity is high, which slows down the pace at which water molecules can evaporate from a surface. As a result, the rate of evaporation reduces as the relative humidity rises. On the other hand, a higher wind speed, a warmer temperature, and more water would all accelerate evaporation.
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geography, or where a person grows up, can influence organizational culture. which example is not shaped by geography?
Geography, or where a person grows up, can influence organizational culture. The example that is not shaped by geography is the option D, eating sushi at lunch break
An employee wellness program is not shaped by geography because it is not related to the location or geography of the employees. It is related to the company's policy and strategy for promoting the health and wellbeing of its employees, regardless of where they live or grow up.
Therefore, this option is the correct answer to the question is option D.
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Complete Question:
Geography, or where a person grows up, can influence organizational culture. Which example is NOT shaped by geography?
A. siesta (a short afternoon nap) in some Latin American countries
B. Muslim's afternoon prayer session
C. wearing a traditional aloha shirt instead of a suit and tie to do business
D. eating sushi at lunch break
does the change of environment from the base of the section up to the thick gray shale indicate an advance (transgression) or retreat (regression) of the sea?
The change of environment from the basal conglomerate to the thick gray shale indicates a transgression of the sea, as smaller clast size suggests a deeper marine environment.
During a transgression, sea level rises, leading to the inundation of previously exposed land areas. As the sea advances, the environment changes from terrestrial to marine, and sediments deposited also change from coarser to finer-grained. In this case, the transition from the basal conglomerate to the thick gray shale suggests a deepening of the marine environment as indicated by the decreasing clast size, indicating that the sea level was rising during this period.
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which of the following glacial features is indicative of the local climate becoming dry and cold? group of answer choices boulder trains. striation. drumlins. loess.
The glacial feature that is indicative of a local climate becoming dry and cold is loess.
Loess is an unconsolidated, silty sediment deposited by the wind, typically found in arid or semi-arid climates. It is usually found on the leeward side of mountains and hills, and is often found in association with glacial deposits.
This process is often found in regions of glacial feature, such as mountain ranges and hillsides. The sediment accumulates in layers of silt, which eventually hardens and forms loess.
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__________ are created when the top of the glacier moves faster than the bottom of the glacier.
Ridges are created when the top of the glacier moves faster than the bottom of the glacier.
A ridge is a formation that is created when the top of the glacier moves faster than the bottom of the glacier. As glaciers move over time, they can create distinct formations in the landscape, and one of these formations is called a ridge. A ridge is formed when the top of a glacier moves faster than the bottom, causing the ice to crack and break off in a jagged line, creating a sharp ridge or peak in the landscape.
Glaciers are known to have a tremendous force that can create a variety of landforms as they move, like valleys, fjords, and moraines. The top of the glacier moves faster than the bottom because of the friction between the ice and the ground. The weight of the glacier on the bottom slows down the movement, while the top can continue to slide forward. This movement can cause stress, which results in fractures, and cracks in the ice, and forms ridges.
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which of the following sediment undergoes the most compaction and reduction in volume during burial and lithification to sedimentary rock? pebbly sand coarse gravel marine mud desert dune sand
Out of the following sediments, marine mud undergoes the most compaction and reduction in volume during burial and lithification to sedimentary rock. Therefore the correct option is option C.
Marine mud is a type of sedimentary deposit that is made up of very fine-grained mineral and organic material that has been transported to the ocean by rivers and other waterways.
Marine mud is typically less than 0.0625 millimeters in size (about the size of fine-grained sand) and is the product of the weathering and erosion of rocks and minerals.
As marine mud is formed from fine-grained materials, it undergoes the most compaction and reduction in volume during burial and lithification to sedimentary rock. Therefore the correct option is option C.
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which of the following sediment undergoes the most compaction and reduction in volume during burial and lithification to sedimentary rock?
pebbly sand coarse gravel marine mud desert dune sand__________ __________ are steep, high walls built along the coast to prevent beaches from eroding. They are usually made out of concrete.
"Sea walls are steep, high walls built along the coast to prevent beaches from eroding. They are usually made out of concrete."
Sea walls are human-made structures built along the shoreline to protect coastal areas from the effects of erosion and flooding. These walls are typically constructed using durable materials such as concrete, and they are designed to absorb the impact of waves and tidal forces.
By providing a physical barrier between the ocean and the land, sea walls can prevent erosion, protect property and infrastructure, and maintain the integrity of coastal ecosystems. However, some experts have raised concerns that sea walls can also have unintended consequences, such as disrupting natural coastal processes, altering the local hydrology, and exacerbating erosion in adjacent areas.
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item2 1 points item 2 all of the ecosystems on the planet together are called the multiple choice lithosphere. biosphere. hydrosphere. stratosphere. atmosphere.
The biosphere is the term used to describe all of the ecosystems on the planet.
Biosphere includes the lithosphere (the solid crust of the Earth), the hydrosphere (the liquid water on the planet), the atmosphere (the air surrounding the Earth), and the stratosphere (the layer of air just above the atmosphere). All of these components work together to create the biosphere, and together they form a complex network of interactions. For example, water evaporates from the hydrosphere and condenses in the atmosphere, which then falls back to the Earth's surface as rain or snow. In this way, the biosphere is constantly exchanging materials and energy between its different components.
The biosphere is the Earth's living systems, including all living things on the planet, such as plants, animals, and microorganisms. The biosphere is closely related to the other three systems, as living organisms rely on water, air, and nutrients from the Earth's crust. The biosphere is the most complex and diverse of the Earth's systems, with a vast range of organisms that interact with each other in intricate ways. All the ecosystems on the planet together are called the biosphere.
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The term for all the ecosystems on the planet together is the biosphere, which encompasses all living organisms and their physical environments, including land, water, and air.
Explanation:All of the ecosystems on the planet together are referred to as the biosphere. This term includes all living organisms and their physical environments, spanning over land (lithosphere), water (hydrosphere), and air (atmosphere). The other options listed: lithosphere, hydrosphere, stratosphere, and atmosphere are all components of the biosphere, but they individually do not represent all ecosystems on Earth.
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Landslide – Portuguese Bend, CA. The Problem 1 placemark flies you to the Portuguese Bend area in California. This region has experienced a massive (and progressive) landslide that has cannibalized the subdivision that once existed on the cliffs overlooking the ocean. How did urbanization likely contribute to cause the mass wasting? You may want to use your textbook. Choose one: a. Vibrations from traffic destabilized the slope. B. Concrete allowed the underlying soil to dry out and lose cohesion. C. Landscape plants (e. G. , trees, bushes) disrupted the stability of the soil. D. Water from septic systems, sprinklers, etc. , lubricated a layer of bentonite clay that slopes toward the ocean
The correct option is D. that is Water from septic systems, sprinklers, etc. , lubricated a layer of bentonite clay that slopes toward the ocean.
The Portuguese Bend landslide, in coastal southern California, is an active, slow-moving mass of blocks and debris that spans from the seashore to modest altitudes along part of the southerly boundary of the Palos Verdes Hills.
Earthflow, rotational, and translational slides all combine to form the Portuguese Bend Landslide. An older, more substantial slide was revived to create the modern slide.
Portuguese Bend, California, landslip. The Problem You can fly to the Portuguese Bend region of California with just 1 placemark. The community that used to be on the cliffs overlooking the ocean has been cannibalized by the significant (and progressive) landslip that occurred in this area. urbanisation likely contributes to cause mass wasting A layer of bentonite clay that slopes towards the ocean was lubricated by water from sprinklers, septic systems, etc.
The Portuguese Bend landslide is a slow-moving mass of blocks and debris that extends from the beach to modest altitudes along a portion of the southern edge of the Palos Verdes Hills in coastal southern California.
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where is the safest place, among those listed below, in the 48 contiguous states with respect to earthquake seismic risk?
The safest place, among those listed below, in the 48 contiguous states with respect to earthquake seismic risk is South Dakota. Thus, Option D is correct.
This is due to its location in the stable interior of the North American Plate, far away from any active plate boundaries or faults.
South Dakota is located in the stable interior of the North American Plate, which means that it is far away from any active plate boundaries or faults. This location makes South Dakota less likely to experience earthquakes compared to other areas located near plate boundaries or faults.
Although earthquakes can occur anywhere, the risk is lower in South Dakota than in other areas such as California or Alaska. Therefore, South Dakota is considered the safest place among those listed below, in the 48 contiguous states with respect to earthquake seismic risk.
Based on this explanation, the correct answer is D.
The complete question:
Where is the safest place, among those listed below, in the 48 contiguous states with respect to earthquake seismic risk?
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the annual cycle of prevailing weather conditions at a given place based on long-term contitions is known as: weather. a trend cyclone climate global warming
The annual cycle of prevailing weather conditions at a given place based on long-term conditions is known as climate.
The term weather is used to refer to short-term conditions such as precipitation, temperature, and wind. The climate of a region is determined by a variety of factors, including latitude, elevation, prevailing winds, and the presence of land and water bodies.
It can be classified into different categories based on temperature, precipitation, and other factors. In general, climate change refers to long-term changes in weather patterns and temperature around the world, while global warming refers specifically to the gradual warming of the planet's surface due to increased levels of greenhouse gases in the atmosphere. Cyclones, on the other hand, are severe tropical storms that can cause significant damage and loss of life. Trends are statistical measurements of changes over time. The correct answer is "climate."
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how do metamorphic changes that take place due to recrystallization differ from those that happen due to pressure solution? match the changes to their correct process.
Answer: The metamorphic changes that take place due to recrystallization differ from those that happen due to pressure solution.
Explanation:
Some of the differences between the two processes of metamorphism are explained below:
Recrystallization: The process of changing the mineral structure and texture of a rock is known as recrystallization. Recrystallization is a process that occurs at high temperatures and pressures. The minerals in a rock can become unstable under these conditions and rearrange themselves to form new minerals with larger crystals. This leads to the formation of a new rock with a new structure and texture.Pressure solution: This is a process of metamorphism that occurs when rocks are subjected to pressure. When rocks are subjected to pressure, the mineral grains in them dissolve into each other. This process is called pressure solution. It is a process of metamorphism in which the minerals in a rock dissolve into each other as a result of the pressure that is being applied to the rock. This leads to the formation of a new rock with a new structure and texture.The metamorphic changes that take place due to recrystallization and pressure solution:
Recrystallization refers to alterations in the size, shape, and orientation of minerals within a rock, as well as the creation or modification of minerals.
Pressure solution leads to modifications in the shape and orientation of minerals in the rock, the establishment of a foliation or cleavage, and the arrangement of minerals along a particular plane or direction.
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units a through k are sedimentary layers. l and m are intrusive igneous bodies. the surface of erosion below layer h represents a(n) period of time of about 100 years. true false
units a through k are sediment layers. l and m are intrusive igneous bodies. the surface of erosion below layer h represents a(n) period of time of about 100 years. is True
Long-term accumulations of sediment and debris that land on the earth's surface or in bodies of water typically result in the formation of sedimentary strata. Each layer can represent a distinct geological epoch or timeframe, based on the type of rock and the fossils found in it.The amount of time that a layer was exposed to erosion, weathering, or other geological processes is represented by the surface of erosion beneath it. The length of that period, however, will vary depending on a number of variables, including the type of rock, the environment, the area, and the level of erosion.
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pls help someone help pls Q2-Q5
A solar cell is an electronic device that converts sunlight into electricity.
2. A. True
B. False
C. False
D. False
E. False
F. True
3. a. The three main advantages of solar power are:
It's a renewable energy source.It doesn't produce greenhouse gases or pollution.It can save money on electricity bills.b. Some disadvantages of solar power are:
It can be expensive to install.It doesn't work at night or in cloudy weather.It takes up space and can be visually unappealing.4. a. Africa has the most potential for solar power because it receives the most sunlight.
b. Greenland has the least potential for solar power because it has long periods of darkness during the year and very low levels of solar radiation.
5. Solar power can be especially helpful in poorer countries because it can provide electricity to remote areas that might not have access to traditional power sources. It can also be more affordable and sustainable than other options.
6.a. An invention that uses solar power for homes in poorer countries could be a portable solar-powered generator. It could be used to power small appliances like lights, phones, or radios.
c. Name: SunGen
Logo: A bright sun with rays emanating from it, with the word "SunGen" written in bold letters underneath.
What is the solar power about?Solar power is a renewable and clean energy source that is derived from the sun's radiation. It is harnessed through the use of photovoltaic (PV) cells or solar panels, which convert sunlight into electricity. Solar power has a variety of applications, including:
Electricity generation: Solar panels can be used to generate electricity for homes, businesses, and even entire communities.Water heating: Solar water heaters use sunlight to heat water, which can be used for domestic or industrial purposes.Lastly, Transportation: Solar-powered vehicles, such as cars, boats, and planes, are becoming more common as technology advances.
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See text below
Your turn
1 What is a solar cell? Answer, then check the glossary! 2 Here are six statements about solar power.
For each one, decide whether it's true, or false.
A With solar cells, a home can provide its own electricity. B You must live near a city to use solar power.
C Solar power is used only in rich countries. D Solar power increases global warming. E You can't make solar power at night.
F With solar power, the source of the energy is free.
3 a Which do you think are the three main advantages of solar power? List them in order of importance. b Now see if you can think of any disadvantages.
4 a Which continent has most potential for solar power? How did you decide?
b Which of these countries has least potential for solar power: Greenland, Spain, or Mali? (Pages 140-141.) Try to explain why, very clearly.
5 Solar power is used in many homes in the UK. But it helps many people in poorer countries even more. Explain why.
6 You are an inventor. And here's a challenge.
a Invent something that uses solar power. Say for tourists, or mums with toddlers, or homes in poorer countries.
b Draw a labelled sketch of it.
C Then make up a name and a logo for it.
what is an aquifer, igneous and metamorphic rocks are not good aquifers as they contain little natural porosity or permeability.
An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt) from which groundwater can be extracted. Igneous and metamorphic rocks generally contain little natural porosity or permeability and therefore cannot be used as aquifers. Igneous rocks, for instance, form when molten magma cools and solidifies.
The cooling process does not leave much space for porosity and permeability. The recrystallization of the rock grains during metamorphism also does not leave much space for porosity and permeability.
Aquifers can be found in sedimentary rocks like sandstone, limestone and shale because the grains of these rocks are arranged in a way that allows for more porosity and permeability.
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contact metamorphic rocks form halos surrounding hot intrusive igneous rocks. group of answer choices true false
Contact metamorphic rocks form halos surrounding hot intrusive igneous rocks. The statement is True.
What are contact metamorphic rocks?
Metamorphic rocks are the result of the transformation of pre-existing rocks caused by heat, pressure, or a mixture of the two. The metamorphism of rocks caused by contact with an igneous intrusion is referred to as contact metamorphism, and the rocks created as a result of this process are known as contact metamorphic rocks.
What are igneous rocks?
Igneous rocks are rocks that are formed from molten magma. When this molten magma cools and solidifies, it becomes an igneous rock.
Basalt, granite, and pumice are three common types of igneous rocks. Igneous rocks may also form in areas where volcanic activity is present, such as around a volcano.Where do contact metamorphic rocks form?
Contact metamorphic rocks are formed in areas where magma comes into contact with existing rock formations, such as the heat from a volcanic eruption.
As a result of the contact between the hot magma and the surrounding rock, metamorphism occurs in the affected area. The metamorphic changes that occur in these regions are primarily caused by the heat that is generated by the magma intrusion. These changes result in the formation of contact metamorphic rocks that surround the intrusive rock.
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if you are at 66 degrees north on first day of winter in northern hemisphere, what will you experience?
On the first day of winter in the northern hemisphere, if you are at 66 degrees north, you will experience cold temperatures, short daylight hours, and potentially snowfall. The sun will set earlier and the temperatures will drop, often below 0 degrees Celsius (32 degrees Fahrenheit).
This region is well within the Arctic Circle, so you can expect the winter to be cold and dark. During the day, temperatures may not reach above freezing, and in the evening they will drop even further. Snowfall is common and the region will be quite dark, as the sun is much lower in the sky at this time of year. During the winter solstice, the sun may only be visible for a few hours each day in this area.
Temperature in the poles around northern hemisphere is too low for any human settlement, lack of direct sunlight is one of the major reason for this extremely low temperature and harsh climate.
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2. given a mean earth radius of 20,906,000 ft, and an observation latitude of n 47 degrees, what is the arc distance of one second of longitude and one second of latitude?
At 47 degrees latitude, one second of longitude is equivalent to about 49.03 feet of arc distance, whereas one second of latitude is equivalent to about 100.76 feet of arc distance.
The following formula can be used to determine the arc distance of one second of longitude at a specific latitude:
Mean Earth Radius x Cosine of Latitude x Arc Distance (angular distance)
where 1/3600 degrees is the angular distance (since there are 3600 seconds in one degree). When we enter the values from the issue, we obtain:
One second's worth of longitude is represented by the formula (20,906,000 ft) x (cosine 47) x (1/3600) = 49.03 ft.
Similarly, the formula: can be used to get the arc distance of one second of latitude.
(Mean Earth Radius) x = arc distance (angular distance)
When we enter the values from the issue, we obtain:
One second of latitude is equal to 20 906,000 feet multiplied by 1/36 equals 100.76 feet.
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which of the common volcanic landforms is the largest in size? group of answer choices composite volcano coulee shield volcano cinder cone volcanic dome
Out of the given options, the shield volcano is the largest in size.
What is a shield volcano?
A shield volcano is a kind of volcano that is defined by its low profile and broad shape. Shield volcanoes are mostly formed by the eruption of basaltic lava, which flows quickly and spreads over a wide area.
The lava flow, when it cools, builds up the volcano's wide, gently sloping sides.
The following are the common features of a shield volcano: Lava plateau Flows of lava may take place from both the central summit and the fissures on the flanks Low angle slopes Gentle eruptions Mafic eruptions Shallow Mafic magma is the source of the volcano's lava composition Largest in size Out of the given options, the shield volcano is the largest in size.
Therefore, the correct option is B - shield volcano.
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What are the 5 stages of solar system formation?
The 5 stages of solar system formation are Solar Nebula, Protostar and Protoplanetary Disk, Planetesimals, Protoplanets and Solar System.
The 5 stages of solar system formation are:
1. Solar Nebula: A cloud of dust and gas, called the solar nebula, begins to collapse due to gravitational forces. As it collapses, the material starts to spin and flatten into a disk shape.
2. Protostar and Protoplanetary Disk: The material in the center of the disk becomes denser, forming a protostar. Meanwhile, the remaining material in the disk starts to clump together, creating a protoplanetary disk around the protostar.
3. Planetesimals: Within the protoplanetary disk, solid particles collide and stick together, forming larger bodies called planetesimals. These planetesimals continue to grow as they collect more material from the disk.
4. Protoplanets: As planetesimals grow and interact, some merge through collisions, eventually forming larger bodies known as protoplanets. Protoplanets continue to evolve and differentiate, developing into the planets we observe in our solar system today.
5. Solar System: Over time, the protostar at the center of the system becomes a fully-fledged star (our Sun), while the remaining protoplanetary disk material is cleared out, leaving the planets, moons, asteroids, and other bodies orbiting the star. This marks the formation of the solar system.
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which of the following is a result of seafloor spreading?
a. Trenches form at transform boundaries.
b. Mid ocean ridges form at convergent boundaries.
c. Mid ocean ridges form at divergent plate boundaries
d. Trenches form at divergent boundaries.
does the southern hemisphere experience hotter summers and colder winters? i ask this because the earth's perihelion is in winter for the northern hemisphere (around january 3rd)
Yes, the Southern Hemisphere does experience hotter summers and colder winters. This is because of the way the Earth's orbit around the Sun is tilted relative to its axis of rotation. The Earth's perihelion, or point of closest approach to the Sun, is in January for the Northern Hemisphere, while it is in July for the Southern Hemisphere.
This means that the Northern Hemisphere gets less direct sunlight during winter, causing colder temperatures, while the Southern Hemisphere gets more direct sunlight during summer, leading to hotter temperatures.
The Earth's axial tilt, or obliquity, is responsible for the Earth's seasons. During winter, the Northern Hemisphere is tilted away from the Sun, and during summer it is tilted towards the Sun. Conversely, the Southern Hemisphere is tilted away from the Sun during summer, and towards the Sun during winter. This difference in angle of sunlight causes the Northern Hemisphere to experience colder winters and hotter summers, while the Southern Hemisphere experiences hotter summers and colder winters.
Additionally, the Southern Hemisphere is more exposed to the ozone layer, which absorbs some of the Sun's ultraviolet radiation, leading to slightly higher temperatures. This explains why the temperatures in the Southern Hemisphere are higher than the Northern Hemisphere during the same season.
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which part of earth's cumulative hypsographic curve includes linear scars in the ocean floor, caused by the collision of two plates along convergent plate margins?
Linear scars on the ocean floor are caused by the collision of two plates along convergent plate margins and this part of Earth's cumulative hypsographic curve is known as a continental shelf.
The continental shelf is typically the area extending from the shoreline to the continental slope. The continental slope marks the beginning of the deep ocean basin and the continental shelf is the part of the ocean floor that is shallow and relatively flat. The continental shelf is typically divided into a series of shelves and basins, which are also known as abysmal basins.
The shelves are generally lower than the continent and rise gradually up to the continental slope. The continental shelf also includes shallow coastal bays, which are formed when sediment is deposited on the shoreline. This part of Earth's cumulative hypsographic curve is important for many oceanic activities, including fishing, navigation, and oil exploration.
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which kind of seismic wave is responsible for the most shaking (and thus, the most damage to human structures)?
The body waves and surface waves responsible for the most shaking.The seismic wave responsible for the most shaking (and thus, the most damage to human structures) is the surface wave.
What are seismic waves?Seismic waves are waves that are generated by earthquakes and other disturbances in the Earth's surface, such as explosions, volcanic activity, and landslides.
They are made up of various types of waves, each with its own distinctive characteristics. There are two types of seismic waves: body waves and surface waves.
Body waves are seismic waves that travel through the Earth's interior. P-waves and S-waves are two types of body waves. Surface waves, on the other hand, are seismic waves that travel along the Earth's surface.
Rayleigh waves and Love waves are two types of surface waves.
Surface waves are responsible for the most shaking (and thus, the most damage to human structures).
The reason for this is that they travel more slowly than body waves, which allows them to cause more sustained shaking.
They are also more complex than body waves, which can cause them to interact with the Earth's surface in unpredictable ways that can lead to more intense shaking.
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mars's seasonal winds are driven primarily by group of answer choices dust vaporization of carbon dioxide ice. vaporization of water ice. changes in air pressure due to volcanic activity.
The seasonal winds on Mars are primarily driven by changes in air pressure due to volcanic activity.
The most important factor controlling the winds is the variation in pressure that is caused by the varying amounts of carbon dioxide, dust, and water ice in the atmosphere. During the Martian year, the atmospheric pressure can change drastically, as the air warms and cools over the course of a Martian year. The changes in pressure cause winds to blow from higher-pressure regions to lower-pressure regions. This pressure difference causes dust storms, as well as the polar winds which can be seen in images of the Martian surface. The amount of vaporization of carbon dioxide and water ice can also affect the wind speeds, but the main factor remains the pressure difference.
In conclusion, the seasonal winds on Mars are primarily driven by changes in air pressure due to volcanic activity. This pressure difference is caused by varying amounts of carbon dioxide, dust, and water ice in the atmosphere, resulting in dust storms and polar winds. The vaporization of carbon dioxide and water ice can also contribute to wind speed, but the main factor remains the pressure difference.
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an example of a primary effect of drought is question 15 options: a drop in groundwater levels rolling blackouts a decrease in tourism low dissolved oxygen content in reservoirs
An example of a primary effect of drought is a drop in groundwater levels.
When droughts occur, one of the most common outcomes is a drop in groundwater levels. As the amount of precipitation drops, the amount of water that enters the soil also drops, resulting in a decrease in groundwater levels. As groundwater levels decline, it becomes more challenging to access enough water to meet the needs of communities and agriculture.
As a result, water scarcity becomes an increasingly serious issue.
Therefore, a drop in groundwater levels is a primary effect of drought. Rolling blackouts, a decrease in tourism, and low dissolved oxygen content in reservoirs are all secondary effects of drought.
Drought is a prolonged dry period in the natural climate cycle that can occur anywhere in the world. It is a slow-onset disaster characterized by the lack of precipitation, resulting in a water shortage. Drought can have a serious impact on health, agriculture, economies, energy and the environment.
Answer: a drop in groundwater levels.
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based upon your analysis, most stratovolcanoes form in which tectonic setting? group of answer choices divergent boundaries oceanic-continental convergent boundaries mantle plumes (hotspots) all of the above
The correct option is All of the above i.e. D. Most stratovolcanoes form in convergent boundaries, which occur when two tectonic plates collide. This collision causes one of the plates to slide beneath the other, creating a subduction zone.
The subducting plate melts due to the extreme pressure and heat created from the collision, resulting in magma being forced upward to form a stratovolcano. Oceanic-continental divergent boundaries can also form stratovolcanoes, as the plate separation creates a rift zone.
Mantle plumes, also known as hotspots, can also form stratovolcanoes when a column of hot material from the mantle rises up through the Earth's crust, creating a weak area of the crust which can then be filled with magma. All of these tectonic settings can create stratovolcanoes. The correct option is All of the above i.e. D.
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describe the major differences in the abiotic factors observed in the high tide zone versus the lower inter tidal zone.
The abiotic factors observed in the high tide zone versus the lower intertidal zone are different. The major differences in the abiotic factors observed in the high tide zone versus the lower intertidal zone are as follows:
Abiotic factors in the high tide zone: In the high tide zone, the abiotic factors include temperature fluctuations, wave exposure, and variations in salinity. This region is typically less exposed to sunlight and air because the tide comes in and out of this zone quickly.
The high tide zone can experience strong wave action, as well as wind and water fluctuations. These factors all contribute to making it a challenging environment for plants and animals to survive.
Abiotic factors in the lower intertidal zone: In the lower intertidal zone, the abiotic factors include water pressure, light exposure, temperature fluctuations, and salinity. This region is typically more exposed to sunlight and air because the tide takes longer to come in and out.
The lower intertidal zone also experiences less wave action than the high tide zone. These factors make the lower intertidal zone an easier environment for plants and animals to survive.
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Part A - Triggers of Mass Movement In this activity, you will explore and test your knowledge about triggers of four mass movement types. Slump: occurs on curved surfaces and involves the movement of unconsolidated materials. Slopes are considerably high in areas where a slump occurs. • Flow: occurs when material moves downslope as a viscous fluid. • Fall: this involves the freefall of rock pleces or masses. Fall occurs on slopes that are too steep for loose material to remain on the surface. Many falls occur when freeze and thaw cycles or plants roots weaken rocks to the point where gravity takes over. Creep: this involves the gradual downhill movement of soil or rock pieces. The major factor that facilitates this process is alternate expansion and contraction by freeze and thaw. Drag the appropriate labels to their respective targets. View Available Hint(s) . Triggered by large amounts of water and steep slopes Triggered by curved oversteepened slopes Triggered by repeated freezing and thawing of soils on gentle slopes Triggered by ice wedging plant activities on steep slopes Slump Flow Creep Fall
Each mass movement has specific triggers that cause them to occur, are curved oversteepened slopes for Slump, large amounts of water and steep slopes for Flow, repeated freezing and thawing of soils on gentle slopes for Creep, and ice wedging and plant activities on steep slopes for Fall.
In this activity, we will discuss triggers of four mass movement types: Slump, Flow, Creep, and Fall.
1. Slump: This type of mass movement occurs on curved, oversteepened slopes and involves the movement of unconsolidated materials. It is triggered by the weakening of the slope due to factors such as water saturation or undercutting, causing the slope to fail.
2. Flow: Flow occurs when material moves downslope as a viscous fluid. It is triggered by large amounts of water and steep slopes, which cause the soil or debris to become saturated and lose its internal cohesion. As a result, the material flows downslope under the force of gravity.
3. Creep: Creep is the gradual downhill movement of soil or rock pieces. This process is facilitated by the alternate expansion and contraction of the material due to freezing and thawing. It is triggered by repeated freezing and thawing of soils on gentle slopes, which causes the soil to slowly move downhill over time.
4. Fall: This type of mass movement involves the freefall of rock pieces or masses. Fall occurs on slopes that are too steep for loose material to remain on the surface. It is triggered by factors such as ice wedging and plant activities, which weaken rocks on steep slopes to the point where gravity takes over, causing them to fall.
In summary, each mass movement type has specific triggers that cause them to occur, including curved oversteepened slopes for Slump, large amounts of water and steep slopes for Flow, repeated freezing and thawing of soils on gentle slopes for Creep, and ice wedging and plant activities on steep slopes for Fall.
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the majority of the rocks that form at the surface of the earth are group of answer choices intrusive igneous rocks. foliated metamorphic rocks. sedimentary rocks. non-foliated metamorphic rocks.
Intrusive igneous rocks are rocks that form when magma cools and solidifies underground. They form in plutonic (intrusive) environments. The majority of the rocks that form at the surface of the earth are Intrusive igneous rocks. the correct answer choice is first option.
Intrusive rocks are typically more coarse-grained than extrusive igneous rocks because of their slow cooling time. Foliated metamorphic rocks are rocks that have been subjected to intense heat and pressure, causing the minerals within the rock to re-crystallize. These rocks have a foliated (layered) appearance, and are typically formed in tectonic plate boundaries and near active volcanoes. Sedimentary rocks are formed from sediment that is deposited over time, and can include minerals, fragments of rock, and even fossilized plant and animal remains.
Non-foliated metamorphic rocks are rocks that have been subjected to intense heat and pressure, causing the minerals to re-crystallize, but without any foliation or layering. Examples of non-foliated metamorphic rocks include quartzite and marble. All of these rocks are formed at the surface of the Earth and contribute to the overall geology and landscape.
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