THE AIR AROUND YOU/Importance Of Our Atmosphere: Question Preview (ID: 28998)

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Which layer of the atmosphere holds most of our ozone?
a) stratosphere b) troposphere c) mesosphere d) exosphere
What is responsible for nearly all of the oxygen in the atmosphere?
a) photosynthesis b) nitrogen cycle c) water cycle d) carbon cycle
What converts nitrogen into nitrates?
a) bacteria b) animals c) people d) farmers
Without the atmosphere what would Earth look like?
a) the moon b) the sun c) a comet d) pluto
Water in the form of a gas is called...
a) water vapor b) ice c) ozone d) glaciers
What are the 4 main gases that make up the atmosphere?
a) nitrogen, oxygen, carbon dioxide and water vapor b) methane, ice, ozone and helium c) hydrogen, helium, ozone and argon d) none of these are correct
Which gas helps us grow and repair damaged cells?
a) nitrogen b) oxygen c) methane d) water vapor
Which gas do we use to release energy from our food?
a) oxygen b) nitrogen c) methane d) carbon dioxide
A form of oxygen that has 3 atoms instead of the usual 2 atoms
a) ozone b) oxygen c) carbon dioxide d) methane
What gives off carbon dioxide as a waste product?
a) both of these are correct b) people c) animals d) none of these are correct
What does ozone in the upper atmosphere help absorb?
a) UV rays b) oxygen c) carbon dioxide d) methane
What is the second most abundant gas in the atmosphere at 21%?
a) oxygen b) nitrogen c) carbon dioxide d) methane
What is the most abundant gas in the atmosphere at 78%?
a) nitrogen b) oxygen c) water vapor d) carbon dioxide
What does Earth's atmosphere do to allow us to live here?
a) All of the these b) gives us warmth c) gives us liquid water d) protects us from many dangers
The layer of gases that surrounds the planet.
a) atmosphere b) weather c) climate d) ozone
The condition of Earth's atmosphere at a particular time and place.
a) weather b) climate c) atmosphere d) ozone
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