Minerals present, crystal/clast size, crystal/clast shape, and presence/absence of layers are evaluated to classify crystalline and clastic rocks.
Texture, or the size, shape, and arrangement of the constituent minerals, is a prominent physical feature of terrigenous clastic rocks. There are three major types of sedimentary rocks: terrigenous clastic sedimentary rocks, carbonates, and noncarbonate chemical sedimentary rocks.
A crystalline rock is one that is entirely composed of crystallized minerals and contains no glassy matter. Intrusive igneous rocks are always crystalline, especially when they cool to semi-solidity at depth, whereas extrusive igneous rocks are mostly non-crystalline because they can be partially or completely glassy. Clastic rocks are made up of pre-existing mineral and rock fragments, or clasts. A clast is a fragment of geological detritus, chunks, or smaller grains of rock that have been physically weathered off other rocks.
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based on principles discussed earlier in the course, you know that as distance from the equator increases, seasonal variation in temperature tends to .
As distance from the equator increases, seasonal variation in temperature tends to decrease.
A place's climate is influenced by how far it is located from the equator. In comparison to the equator, solar radiation has to travel further and at a shallower angle to reach the surface of the Earth at the poles, where the atmosphere is more dense. Because of this, the climate becomes increasingly colder as one moves away from the Equator.
In the summer, there is a period of time at the poles when the sun does not set, and in the winter, there is a period of time at the poles when it is completely dark. This is the greatest variation in day length that occurs between the summer and the winter at the poles. On the other hand, day length varies very little near the equator.
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Match the level of damage described to the Enhanced Fuijita scale classification of the tornado that caused it.
1. EF4
2. EF0
3. EF3
4. EF1
___ overturned single wides (trailers) and uprooted trees
___ houses mostly destroyed
___ siding and shingle damage
___ devastating damage and large sections of school buildings destroyed
1. Devastating damage and significant building destruction in schools - EF4. 2. Damage to the siding and shingles: EF1. 3. Trees uprooted and overturned single wides (trailers) - EF3. 4. Most of the homes were destroyed - EF2.
The Enhanced Fujita scale (EF-scale) is a method for categorizing tornado strength based on the amount of damage they produce. The scale goes from EF0 to EF5, with EF0 being the weakest and EF5 being the strongest.
The least powerful tornadoes, or EF0s, have winds of 65 to 85 mph and only moderate damage to buildings, such as shingle and siding damage. With wind speeds ranging from 86 to 110 mph, EF1 tornadoes can cause only moderate harm to trees and buildings, including uprooted trees and overturned single wides (trailers). Wind speeds from EF2 tornadoes range from 111 to 135 mph, and they can seriously harm homes, mostly destroying the walls and roofs. Wind speeds from EF3 tornadoes range from 136 to 165 mph and can destroy large portions of school buildings in addition to causing severe damage to homes and buildings. With wind speeds ranging from 166 to 200 mph, an EF4 tornado can destroy everything in its path, leaving only foundations or rubble. Winds from EF5 tornadoes can completely demolish sturdy homes and buildings, resulting in catastrophic damage, and can reach speeds of more than 200 mph.To learn more about Enhanced Fujita scale classification at
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Based on the data in the table, which of the following is a possible impact of ethnic and religious diversity in Iraq?
answer choices
O Ethnicity and religion act as centripetal forces in the country by creating a common Iraqi identity among the population.
O Ethnicity and religion facilitate democratization in the country by motivating participation in elections.
O Ethnicity and religion promote economic development in the country by generating national pride in the country’s accomplishments.
O Ethnicity and religion lead to devolutionary pressures in the country by politically dividing regions.
O Ethnicity and religion increase cultural cohesion in the country by promoting shared political ideology.
Based on the data in the table, Ethnicity and religion lead to devolutionary pressures in the country by politically dividing regions is a possible impact of ethnic and religious diversity in Iraq.
ABOUT IRAQIraq is a country in the Middle East or Southwest Asia, covering most of the area of Mesopotamia as well as the northwestern tip of the Zagros Mountains and the eastern part of the Syrian Desert. This country is bordered by Kuwait and Saudi Arabia to the south, Jordan to the west, Syria to the northwest, Turkey to the north, and Iran to the east. Iraq has a very narrow section of coastline at Umm Qashr in the Persian Gulf.
Iraq has a rich history. Now Iraq is a developing country in the midst of a civil war.
EtymologyThere are several opinions about the origin of the name Iraq; – one of them comes from the city of Uruk (or Erech) from the time of the Kingdom of Sumer. Another opinion says that Iraq[8] comes from Aramaic, which means "land along the banks of the river." Another opinion says that Iraq is a reference to the roots of the palm tree, because there are so many of them in that country.
Under the Persian Sassanid Dynasty, there was a region called "Erak Arabi" which refers to the southwestern part of the Persian Empire, which is now part of southern Iraq. Al-Iraq is the name used by the Arabs themselves for this area since the 6th century..
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14. which of the following is most likely to occur in a forested region that has been recently clearcut?
The region's streams will have higher nitrate concentrations.
Although there are a number of potential causes, human activity, such as agricultural operations, is the most common.
Nitrates are widely used as fertilizers in agriculture and can leak into nearby water sources, increasing the concentration in streams.
The over-nutrient enrichment of aquatic systems, known as eutrophication, can be brought on by excessive nitrate consumption, which will result in an overabundance of algae and other aquatic plants.
In addition to rendering the water unfit for human consumption, this can harm or kill fish and other aquatic life.
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Which of the following is not a problem with the Fujita Scale, which uses damage to rank the severity of a tornado and estimate its wind speeds? West Select one: a. The scale is subjective b. Construction standards, quality and age are not the same everywhere making the scale officult to use c. if the tornado is nothing the scale is useless d. We only know the wind speeds of a tornado after a damage survey has been completed e. All of the above are problems with the Fujita Scale
The scale is subjective is not a problem with the Fujita Scale, which uses damage to rank the severity of a tornado and estimate its wind speeds.
ABOUT FUJITA SCALEThe Fujita scale is a scale for rating tornado intensity, primarily based on the damage tornadoes cause to man-made structures and vegetation. Fujita's official scale categories are determined by meteorologists and engineers after ground or air damage surveys, or both; and depending on the circumstances, ground rotation patterns (cycloidal markings), weather radar data, witness testimony, media reports and damage imagery, as well as photogrammetry or videogrammetry if motion picture recording is available. The Fujita scale was replaced with the Enhanced Fujita scale (EF-Scale) in the United States in February 2007.
In April 2013, Canada adopted the EF Scale over the Fujita scale along with the 31 "Specific Damage Indicators" used by Environment Canada (EC) in their ratings.
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Which natural resources are most important to South Asia's large population?
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Answer:
Water from rivers is an important resource. India has most of the mineral resources in the region.
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Number 1 - Exosphere
Number 2 -Thermosphere
Number 3 - Mesosphere
Number 4 - Stratosphere
Number 5 - Troposphere
Number 6 - Hydrosphere
Number 7 - Crust
Number 8 - Mantle
Number 9 - Outer core
Number 10 - Inner Core
What should we know about structure of the earth?The earth's structure is divided into four major components: the crust, mantle, outer core, and inner core. Each layer has its own chemical composition and physical state, and it can have an impact on life on Earth's surface.
Plates shift as a result of movement in the mantle caused by variations in heat from the core, which can result in earthquakes and volcanic eruptions. These natural disasters then alter our landscape and, in some cases, endanger lives and property.
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Question 2 of 41
Convection in the mantle causes
material to rise.
OA. lighter; heavier
OB. heavier; lighter
OC. hotter; cooler
OD. cooler; hotter
material to sink and
SUBMIT
Convection in the mantle causes hotter material to rise and cooler material to sink down.
Option C is correct.
Which heat causes convection in the mantle?For mantle convection, there are three primary sources of thermal energy: internal warming brought on by the radioactive decay of the uranium, thorium, and potassium isotopes; the earth's long-term secular cooling; as well as core heat.
What exactly is convection and how does it work?Convection occurs when parts of a liquid or gas heat or cool faster than their surroundings, resulting in temperature differences. The areas then move as a result of these temperature differences, with the hotter, denser areas rising and the cooler, denser areas sinking.
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Basaltic magma is very fluid. What type of volcano and eruption would basaltic magma most likely produce? composite, an explosion of lava and pyroclastic flow shield, a lava flow with no explosion cinder cone, a pyroclastic flow with no explosion shield, an explosion of lava ASK FOR HELP Copyright © 2022 Imagine Learning LLC.All rights reserved. TERMS OF USE
The kind of volcano and eruption would basaltic magma most likely produce is shield, a lava flow with no explosion. Thus, option second is correct.
What is Shield volcanoes?Shield volcanoes are generated by basaltic magma, which is often found above a mantle plume, whereas stratovolcanoes (also known as composite volcanoes) are produced by andesitic/rhyolitic magma.
When a volcano spews low viscosity, flowing lava, it spreads far from the source, forming a shield volcano with soft slopes. The majority of shield volcanoes are created by fluid basaltic lava flows. The shield volcanoes Mauna Kea and Mauna Loa.
The most likely volcano and eruption produced by basaltic magma is a shield, a lava flow with no explosion. As a result, option two is correct.
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the planets tilt affects the amount of erosion earth receives from the sun
Atmospheric circulation is driven by the difference in solar energy received at different latitudes. Heat is more prevalent in areas that receive more solar energy. Because of the Earth's tilt, different areas receive varying amounts of solar energy.
What do you mean by Erosion?The geological process by which earthen materials are worn away and transported by natural forces such as wind or water is known as erosion.
At the December solstice, the Earth's axis is tilted away from the Sun, and at the June solstice, it is tilted toward the Sun, spreading more and less light on each hemisphere. The tilt is at a right angle to the Sun at the equinoxes, and the light is evenly distributed.
Therefore, Because of the Earth's tilt, different areas receive varying amounts of solar energy.
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q8: approximately how many hours of daylight did each of the locations receive on the two equinoxes?
On the two equinoxes, each region received around 12 hours of daylight.
Given a level horizon and no air refraction during the day of the celestial equator, the sun's center would set roughly 12 hours after rising.
The vernal equinox, which occurs in the spring around March 21, as well as the autumn equinox, which occurs in the fall around September 23, are the days when the earth receives 12 minutes of sunlight and 12 hours of darkness.
Locations near the equator receive just approximately 12 hours of light every day.
Locations near the equator receive just approximately 12 hours of light every day. In comparison, the north pole has 24 hours of brightness during the summer and complete darkness during the winter. Lengthy dawn, as well as a long sunset, divide these two yearly seasons of light and gloom.
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Discuss some of the European nations that still have a monarchy. How do the monarchies of today differ from those that existed centuries ago? What has remained the same?
The majority of contemporary monarchies are constitutional: the constitution grants an elected legislature real power and the authority to carry out government functions.
What are monarchies?Monarchy, a kind of government in which one person has unbroken sovereignty or authority. The phrase refers to countries where the monarch, a unique ruler who serves as the head of state and is elected through hereditary means, holds supreme power.
In most monarchies, only males—typically from father to son—are eligible for succession. A monarchy is made up of different but interdependent institutions that support the social life of the dynasty's members, their friends, and the associated elite.
These institutions include the government and the state administration on the one hand, and the court and various ceremonies on the other.
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