Question

Which has the greatest effect on wind speed?
A
precipitation
B
cloud cover
C
wind direction
D
air pressure

Answer 1

D) air pressure

Air pressure has the greatest effect on wind speed. Wind is caused by differences in air pressure; when there is a significant difference in pressure between two areas, the wind will flow from the high-pressure area to the low-pressure area, and the greater the difference in pressure, the stronger the wind speed.