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

question 7

Multiple Choice

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

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