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Question
Which of the following layers of the atmosphere will have the lowest pressure?
Which of the following layers of the atmosphere will have the lowest pressure?
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Solution
The correct option is C Exosphere
The Exosphere has the lowest pressure because pressure drops as altitude increases. This is due to the
atmospheric air being pulled towards the surface of the earth due to gravity. Which means air density is less as you go
up because there is lesser and lesser air mass above you. Air density & air pressure are directly related because as density goes
down pressure goes down too and vice versa.
Exosphere
The Exosphere has the lowest pressure because pressure drops as altitude increases. This is due to the
atmospheric air being pulled towards the surface of the earth due to gravity. Which means air density is less as you go
up because there is lesser and lesser air mass above you. Air density & air pressure are directly related because as density goes
down pressure goes down too and vice versa.
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