The wind's speed generally increases with height above Earth's surface because ____.
A)only the lowest layer of air rotates with Earth
B)air temperature normally decreases with height
C)wind instruments are not accurate at Earth's surface
D)friction with Earth's surface slows the air near the ground
E)air parcels expand and become less dense as they rise above the surface

Question

Quizplus · Accepted Answer

Friction with Earth's surface slows down the air near the ground, causing wind speeds to be generally lower close to the surface. As you move higher above the surface, the influence of friction decreases, allowing wind speeds to increase.

The Wind's Speed Generally Increases with Height Above Earth's Surface