Question

Why is there less air pressure at higher altitudes?

A.Lighter air molecules float above heavier air molecules.

B.Air at higher altitudes is cooler and less turbulent.

C.The warmer, lighter air rises bringing cooler heaver air to low altitudes.

D.Air at higher altitudes doesn't have as much air weighing down on it from above.

Answer 1

its a draw between a and c

Answer 2

because hot air rises

Answer 3

and it has to do with the atmosphere

Answer 4

so i would say c

Answer 5

thanks i got it
its a