Question

why air pressure maximum at sea lavel​

Answer 1

Most gas molecules in the atmosphere are pulled close to Earth's surface by gravity, so gas particles are denser near the surface. ... With greater depth of the atmosphere, more air is pressing down from above. Therefore, air pressure is greatest at sea level and falls with increasing altitude.

Answer 2

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Most gas molecules in the atmosphere are pulled close to Earth's surface by gravity, so gas particles are denser near the surface. ... With greater depth of the atmosphere, more air is pressing down from above. Therefore, air pressure is greatest at sea level and falls with increasing altitude.