Question

What determines the speed of a wind?

the altitude of the warmer air mass
the moisture content of air over water
the difference in air pressure between air masses
the moisture content of air over land

Answer 1

C. the difference in air pressure between air masses

Step-by-step explanation:

The difference in all air pressures, like letting the higher-pressure air out of a balloon or any other objects that can store pressures, determines the speed of the wind.