Ice storms occur when which of the following conditions prevail?
A) Rain drops circulate repeatedly above and below the freezing level in a cloud.
B) Moist, cool air is adiabatically cooled to the freezing point.
C) A cold front pushes warm, moist air to the freezing level in a cloud.
D) A layer of warm air is between two layers of cold air.
D
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Hurricanes can't form along the equator because
a. ?there isn't much water along the equator, it's mostly land. b. ?the Coriolis force is too small along the equator. c. ?there are no feedback mechanisms along the equator. d. ?it's too humid for the ocean water to evaporate. e. ?the water temperature is too warm.
The greatest concentration of ozone is in the ________.
A. troposphere B. thermosphere C. mesosphere D. stratosphere E. lithosphere
18,000 years ago, huge ice sheets called ____ covered vast areas of North America and Europe
a. ?alpine glaciers b. ?continental glaciers c. ?polar glaciers d. ?landmass glaciers e. ?mountain glaciers
With which nation has Azerbaijan had a long-running dispute over its exclave of Nakhchivan?
A) Russia B) Iran C) Armenia D) Kazakhstan E) Turkmenistan