What are the primary elements that make up the Earths atmosphere?

Answers

Answer 1

Answer:

Nitrogen, Oxygen, Carbon dioxide and Argon are the primary elements that make up the Earth's atmosphere.

What are the primary elements that makeup Earth's atmosphere?

With argon, carbon dioxide, helium, neon, and other gases making up just trace amounts, nitrogen and oxygen make up 99 per cent of the gases in dry air. The atmosphere of Earth also contains dust and water vapor. Many of the gases in our atmosphere, according to scientists, were expelled into the atmosphere by early volcanoes. There would have been little to no free oxygen encircling Earth at that period.

The term "free oxygen" refers to oxygen atoms that are not joined to another element, such as carbon (to create carbon dioxide) or hydrogen (to create water). Primitive creatures, most likely bacteria, may have contributed free oxygen to the atmosphere during photosynthesis. A plant or other autotroph uses photosynthesis to convert carbon dioxide and water into food and oxygen.

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Answer 2

Answer: Nitrogen, Oxygen, Carbon dioxide and Argon.

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Are Countries with low GDPs are the most highly developed countries in the world?

Answers

No! because you need high GDPs in order to be developed.

Hope this helped!:)

Answer:

false

Explanation:

They are not they have these low rankings for a reason

Which continent has the greatest total population

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Asia. It has both India and China, which together have nearly 3 billion people. Add to that all the other countries in Asia, and it has well over half the world population.

A long period of climate cooling during which ice sheets spread beyond thepolar regions is called a

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Answer:

ice age

Explanation:

Definition: a glacial episode during a past geological period

BrazilAccording to the book, where Brazil is located. What is your continent? What is Brazil?

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Answer:

the continent is in south America

Which of the following is a nonrenewable resource?
a. Oil
b. Solar
c. Water

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a. Oil

in fact we're starting to run out of oil

By 2016, national fuel economy standards will require car manufacturers to make cars that meet

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By 2016, national fuel economy standards will require cars that meet : 39 Mpg.
The higher the rate is, the more environment friendly the cat would be, since it could cover a longer distance with lesser fuel.

Hope this helps

Answer:

It's the 3rd from the top.

Explanation:

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