The force that generates wind is:
A) gravity.
B) centrifugal force.
C) Coriolis force.
D) friction.
E) pressure gradient force.
E
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Which condition would be equivalent to an air temperature of 45°F, a wind speed of 30 mi/hr, and a wind-chill equivalent temperature of 15°F?
A) a 15°F air temperature and 0 mi/hr winds B) a 30°F air temperature and 45 mi/hr winds C) a 30°F air temperature and 15 mi/hr winds D) a 15°F air temperature and 30 mi/hr winds
The amount of ozone in the upper atmosphere
A. contributes to smog. B. shields the earth from radiation from ultraviolet light. C. increases with the presence of chlorofluorocarbons. D. All of these statements are correct.
Dry deposition occurs when ____.
A. pollution levels are low B. acidic particulates fall to the ground C. pollutants are released in cold air D. pollution travels a large distance from its source E. acidic snow, rain, or fog reaches the ground
Most of the tall grass prairie of North America has been converted to ________
A) tundra B) savannas C) desert D) farmland E) tropical rain forest