The relative humidity can increase or decrease even though the water vapor content doesn't change because:
A) relative humidity is tied to the amount of dry air present in the sample considered.
B) water vapor is a locally conservative property of the atmosphere.
C) relative humidity is directly dependent on cloud cover.
D) relative humidity is temperature dependent.
Question 2
What is probably the most effective index of water vapor content?
A) absolute humidity
B) relative humidity
C) dew point
D) precipitation
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