Which statements about humidity are true? Check all that apply.Humidity is the measure of the amount of water vapor in the air.Warm air holds less water vapor than cold air.Warm areas promote less evaporation.Areas with a large amount of surface water have high humidity levels.Warm tropical areas have very humid air.
Which conditions are necessary for clouds to form?
Which cloud types would most likely indicate that a thunderstorm is on the way?
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