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Earth Sciences 16 Online
OpenStudy (cookie_2046):

Which of the following best describes the thermosphere? A.Lighter gases such as nitrogen and oxygen rise to the top of the thermosphere. B.The thermosphere sits directly below the troposphere. C.The atmosphere is so thin that gas molecules rarely contact each other. D.Heavier gases such as hydrogen and helium stay at the bottom of the thermosphere.

OpenStudy (anonymous):

well....... in my opinion it is "a".

OpenStudy (cookie_2046):

what do u think zedditup

OpenStudy (anonymous):

b is not because hydrogen and Helium sink. c is not because thermosphere is the outer layer. d is not because Nitrogen and Oxygen are heavy, so they will sink

OpenStudy (anonymous):

Well, a good way to start is by figuring out the root. "Thermo" means that it's related to heat. Given that information, we can eliminate C because heat is caused by more particles colliding with each other. The Thermosphere is between the Exosphere and Mesosphere, which means it's not B. The upper thermosphere primarily contains oxygen, nitrogen, and helium. As helium is in the upper atmosphere, it means that the answer cannot be D, because D states that helium is in the bottom. All this being said, your answer should be C

OpenStudy (anonymous):

A*

OpenStudy (anonymous):

Idk why I said C lol

OpenStudy (anonymous):

you see..... i was right

OpenStudy (cookie_2046):

we all make mistakes

OpenStudy (cookie_2046):

Okay well thanks again

OpenStudy (anonymous):

Np

OpenStudy (anonymous):

no problem... :)

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