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Which of the following correctly explains the meaning of the statement "The relative humidity in Phoenix is 10 percent today"

A. Ten percent of the air in Phoenix is water vapor.
B. The air holds 10 percent of the water that is available in Phoenix.
C. The air in Phoenix holds 10 percent of the water that it could hold.
D. Ten percent of the water in the air in Phoenix is contributing to the humidity.

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zebrius
The correct answer is C.
Relative humidity is a physical term referring to the amount of moisture in the air in relation to what the air can hold at that temperature. When the amount of moisture exceeds the limit of capacity of the air, then it concentrates as dew.

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