16. What are the two classes of
pure substances?
A. Atoms and molecules
B. Solutions and mixtures
C. Liquids and gases
D. Elements and compounds

Answers

Answer 1

Answer:

B and C

Explanation:

so so soryy if im wrong

Answer 2

Explanation:

I guess the answer is B and D

from which I know, D is for sure


Related Questions

List five merit goods in your community or a nearby city and the functions they serve

Answers

Examples of merit goods in the community are:

education: Helps to educate the masses and give them a career.health care: Takes care of the health needs of the population.welfare services: Helps to ensure that people are helped to improve their living conditions and help financially.housing: Helps to ensure that the citizens have adequate shelter.fire protection: helps to establish standards that would help people against fire incidents.

What are merit goods?

These are the goods that are in the society which the people and the government have the opinion that they are deserving of public funds.

Read more on merit goods here: https://brainly.com/question/25745683

What is a mutation process?

Answers

Answer:

A Mutation occurs when a DNA gene is damaged or changed in such a way as to alter the genetic message carried by that gene. A Mutagen is an agent of substance that can bring about a permanent alteration to the physical composition of a DNA gene such that the genetic message is changed.

Explanation:

Answer:

Explanation:

A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses

Using relative dating techniques, give a relative age for the fault in Figure 13-1?

Fault occured sometime between units ________ & ________.

Answers

Answer:Despite seeming like a relatively stable place, the Earth's surface has changed dramatically over the past 4.6 billion years.

Explanation:Despite seeming like a relatively stable place, the Earth's surface has changed dramatically over the past 4.6 billion years. Mountains have been built and eroded, continents and oceans have moved great distances, and the Earth has fluctuated from being extremely cold and almost completely covered with ice to being very warm and ice-free. These changes typically occur so slowly that they are barely detectable over the span of a human life, yet even at this instant, the Earth's surface is moving and changing. As these changes have occurred, organisms have evolved, and remnants of some have been preserved as fossils.

0° of latitude is found at the ______ and the 90° of latitude is found at the _____.

Answers

Answer:

equator, north pole

Explanation:

the South Pole is 90 degrees South too

0° of latitude is found at the equator and 90° of latitude is found at the north pole.

What is the Equator?

A ring that circles a planet or other celestial body's axis is said to be its equator. The northern and southern hemispheres are separated by the Equator. The South Pole is 90 degrees S latitude, and the North Pole is 90 degrees N latitude.

With a latitude of 0 degrees, it is midway between the north and south poles. All year long, the climate is warm in towns and cities near the equator. The reason for this is that the sun is nearly always straight overhead.

The Equator is the place on Earth where it is the largest. The Equator heats up more quickly than the poles because sunlight strikes a smaller surface area there. There are few seasonal temperature variations close to the equator.

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Half of southeast asia's population lives in which two countries?

Answers

Answer:

Indonesia and the Philippines

Explanation:

more than half the populations lives on these islands

hope this helps

More than 600 million people live in Southeast Asia, with more than half of the population residing on Indonesia's and the Philippines' numerous islands.

Why is South Asia so overpopulated?

Over a quarter of the urban population in South East Asia lives in overcrowded dwellings. Asia's developing cities are mostly focused on constructing motorways and skyscrapers, which leave insufficient residential space and contribute to the continent's congestion.

Thus, Indonesia's and the Philippines' were the countries.

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Which is a major drawback to the use of hydrogen power?
O
A. The use of fossil fuels is required to create pure hydrogen.
B. Hydrogen power creates toxic waste that must be stored forever
C. Hydrogen may run out in the next 100 years.
O D. Burning hydrogen releases greenhouse gases.

Answers

Answer:

1. The expenses 2. It's also really flammable 3. It also emits a greenhouse gas.

Answer:

the answer is A

Explanation:

Please Help!!!!!!!
Identify the countries labeled on the following map.

Answers

search Europea map

It's no letting me tipy the countries

List at least 3 different you can notice between a day in the summer and a day in the winter?

Answers

Summer days are longer and winter days are shorter

Areas of low pressure tend to have ______ air and _____ weather.

Answers

Answer:

thinner air and windy weather

Explanation:

What is the difference between arctic tundra and alpine tundra?

Answers

Arctic tundra are found on high-latitude landmasses, above the Arctic Circle; in Alaska, Canada, Russia, Greenland, Iceland, and Scandinavia, for example; or on far southern regions, like Antarctica. Alpine tundra are located at very high elevations atop mountains, where overnight temperatures fall below freezing.

An expert in demography is asked to predict changes to the population size of a small country. Which data about the country would be most useful for the expert to analyze?

Answers

The lionfish population will continue growing exponentially indefinitely.

(100 points) Describe the stages of economic development described in Rostow's theory of modernization and growth. Then, give an example of at least two ways countries may face challenges when following this model.


Note: This has to be a unique writing. If you copy and paste from a website, uhhh- YOu suck :V

Answers

Answer:

1.Traditional society: Is an agricultural economy of mainly subsistence farming little to which is traded.

2.Pre-conditions for take off: Agriculture become more mechanized and more output is traded.

3. Take-off: manufacturing industry assumes greater importance.

4.Drive to maturity: The growth of the industry spread to different parts of the country.

5.Age of mass consumption: Output levels grow enabling increased consumer expenditure.

Hope this helps!

Look at the map. Which of the following conclusions is best supported by the
map?
• one dot = 7500 people
Alaska
Hawaii
2000 Population Distribution
in the United States
A. Diversity only exists in urbanized areas.
O B. Crops can generally be grown only west of the Mississippi.
O C. The coastlines generally have a greater concentration of
population
O D. There are no urbanized areas in the Midwest.

Answers

The answer is d because I think so

Describe how lunar phases result from different portions of the moons a illuminated half being visible as the moon orbits earth

Answers

Just like the Earth, half of the Moon is lit by the Sun while the other half is in darkness. The phases we see result from the angle the Moon makes with the Sun as viewed from Earth.


Hope this helps ^v^

What is the only state capital not accessible by road?.

Answers

Answer:

Juneau Alaska

Explanation:

only a car ferry

What unexplained oddities have been found in the fossil record?

Answers

A typical unexplained oddities which been found in the fossil record is the evolution of species e.g. crocodile & bird, ape & human which are from same family.

What is a fossil record?

This refers to the history of life which was documented by fossils.

The fossil record entails observation from fossils which are remains organisms from earlier geological periods that was preserved in sedimentary rock.

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Small galaxies containing only a few million to a few billion stars are called.

Answers

Answer:

Dwarf galaxies!

Explanation:

They can also be labeled as irregular, as the shape is not "normal" compared to other galaxies.

I hope this helps!

-No one

Dwarf Galaxy’s
Hope this helped.

________lines are used to measure north and south of the Equator
Latitude
Meridian
Longitude
Parallel

Answers

Answer:

Latitude lines are uses to measure North and South of the Equator.

Which best completes the chart above

Answers

Answer:

The answer seems to be B.

Explanation:

Deserts can be found near oceans on the coast of continents?.

Answers

Answer:

Yes.

Explanation:

Coastal deserts, as the name indicates, are deserts that stretch along the shore. They're one of the four primary desert varieties. Their proximity to the sea endows them with distinct characteristics not present in other deserts. Deserts like this are common on the western margins of continents, when cold ocean currents flow parallel to the shore. The air above is unable to contain moisture due to the cold currents, and the majority of it falls as rain on the sea before reaching land. As a result of the cold ocean currents, the area around the shore receives little or no precipitation and becomes a desert. Winters in coastal deserts are generally brief, with temperatures of 5°C and lower, with the lowest temperature recorded being -4°C. Summer temperatures in the coastal deserts range from 13°C to 24°C, with 35°C being the maximum ever recorded. Every year, an average of 13cm of rain is recorded. Despite their proximity to water sources, these deserts remain noticeably dry because the majority of precipitation falls in the ocean, with just a little portion reaching land. The soils in these deserts are more permeable, with a moderate texture and salt concentration. The production of strong fogs in the winter is another distinctive feature of coastal deserts. Upwelling cold currents cause such fogs to develop, which coat the desert and prevent sun rays from reaching the sands.

How is the rainforest dependent upon the photosynthesis?.

Answers

Answer: Photosynthesis absorbs carbon dioxide and produces the oxygen we need for respiration or breathing. The rainforest is the most efficient absorber of carbon dioxide, but rainfall, soil and sunlight conditions must be right for this to happen.

Hope this helps!

Public Domain


The map shows the Korean Peninsula separated into North and South Korea after the Korean War.




Identify the root of conflict displayed in the map below.

Describe a centripetal force in the map displayed below.

Describe a centrifugal force in the map displayed below.

Define political boundaries.

Compare the types of government in North and South Korea.

Describe a social OR economic consequence related to the map below.

Describe another contemporary border conflict elsewhere in the world.

Answers

The root of the conflict that led to the Korean War was the division of Korea along Communist and Democratic lines.

A centripetal force in the map would be the fact that people of both nations are Koreans. A centrifugal force, is the different political ideologies that both nations follow.

The political boundaries between North and South Korea are determined by the Military Demarcation Line.

The North Korean government is Communist while the South Korean government is free market democratic.

An economic consequence of the map given is that people in North Korea are economically backward compared to South Korea.

Another contemporary border conflict was that of North and South Vietnam which was resolved by the Vietnam War.

What does the map say about the Korean War?

The Korean War happened because the United States and the Soviet Union divided it along political lines with the North being communist and the South being democratic.

Centripetal forces are those that pull people together which in this case, is the shared ethnicity of being Korean. Centrifugal forces pull people apart so in this case refers to the different political ideologies of both Koreas.

When a ceasefire was called, the political boundary became the military demarcation line. With the North closed off, they became economically backward while the South prospered.

Find out more on the Korean War at https://brainly.com/question/12071197.

Urbanization of a watershed is most likely to result in __________.Group of answer choices increased infiltration of rainwater an increase in the volume of water entering streams after rainfalla decrease in the likelihood of flash floodinga longer lag time between storms and the onset of flooding

Answers

Answer:

an increase in the volume of water entering streams after rainfall

Explanation:

The watershed rises the water in streams and other places full of water.

whats the definition of a Tornado

Answers

a mobile, destructive vortex of violently rotating winds having the appearance of a funnel-shaped cloud and advancing beneath a large storm system.

Answer:

Tornados are rotating or circling columns of air that are very violent, they are know to be natures most dangerous type of storm and they are said to be attached to the base of a thunderstorm. They are extremely dangerous and can damage so many things.

Explanation:

I hope it helps! Have a great day!

Muffin ^^

What do climate scientists predict will be the result of shifting patterns of precipitation caused by anthropogenic global warming

Answers

Answer:

They think that the world will get warmer as a result

Gold was deposited into earth’s crust billions of years ago by what?.

Answers

It is theorized that gold arrived on Earth via interstellar dust and asteroid impacts billions of years ago. It is a yellow-colored precious metal mainly found in our planet's crust.

How long does it take to recover from an appendectomy.

Answers

Answer:

2-4 weeks or 1-3 weeks

Explanation:

Your recovery time depends on the type of surgery you had. If you had laparoscopic surgery, you will probably be able to return to work or a normal routine 1 to 3 weeks after surgery. If you had an open surgery, it may take 2 to 4 weeks. If your appendix ruptured, you may have a drain in your incision.

what are positive impact of cold front​

Answers

Answer:

Cold fronts usually bring cooler weather, clearing skies, and a sharp change in wind direction and as your body experiences cold air, your immune system can fight infection more effectively.

Hope this helps :)

what are land use model?​

Answers

Land use models deal with describing activities of land consuming actors and their competition for land in an urban setting.

ℎ ℎ! <3

Which route best connects iron ore to the large bituminous and anthracite coal mines located west of pittsburgh?.

Answers

The route that best connects iron ore to the large bituminous and anthracite coal mines is the Great lakes to Cleveland .

What is iron ore?

Iron ore ssrves as one of the mineral resources which can be heated in the presence of a reductant to produce a metallic iron.

It is usually inform of iron oxides and primary forms of which are magnetite , which can be found at Great lakes of Cleveland .

Learn more about Iron ore at;

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