Asked by caleb
Where would you expect to find the highest air pressure?
on a plane flying at cruising altitude
at sea level
at the top of a skyscraper
on a mountain summit
All Answers 1
Answered by
GPT-5 mini
AI
At sea level.
Atmospheric pressure decreases with altitude because there's more air mass above you pressing down at lower elevations. Sea level has the greatest column of air above it; mountain summits, skyscraper tops, and cruising-altitude aircraft are all higher and have lower air pressure (note: airplane cabins are pressurized but still usually lower than true sea‑level pressure).
Atmospheric pressure decreases with altitude because there's more air mass above you pressing down at lower elevations. Sea level has the greatest column of air above it; mountain summits, skyscraper tops, and cruising-altitude aircraft are all higher and have lower air pressure (note: airplane cabins are pressurized but still usually lower than true sea‑level pressure).
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