why does atmosphere pressure it decrease as we go higher
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Explanation:
Atmospheric pressure decreases as the height of a surface above ground level increases. This is because, as the altitude increases: the number of air molecules decreases. the weight of the air decreases.
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Explanation:
Air molecules colliding with a surface cause atmospheric pressure. Atmospheric pressure at sea level is about 101,000 Pa (101 kPa) but just 27,000 Pa (27 kPa) at the cruising altitude of a passenger plane.
The atmosphere is the layer of air around the Earth. Key features of the atmosphere:
- it is thin compared to the size of the Earth
- it becomes less dense as the altitude increases
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