Question

What happens to the density of air as altitude decreases? A. The Density of air decreases. B. The density of air increase. C. The density of air stays the same. D. The density of air changes randomly.

Answer 1

A. The densitiy of air increases because, air pressure is higher at lower altitudes.

Answer 2

the densitiy of air increases becuase, air pressure is higher at lower altitudes.