Question

saturated air may become unsaturated.

Answer 1

ok, but elaborate on your question.

Answer 2

Unsaturated air can become saturatedin three ways—by evaporation of water into the air; by the mixing of two masses of air of different temperatures, both initiallyunsaturated but saturated as a mixture; or, most commonly, by cooling the air, which reduces its capacity to hold moisture as water vapour sometimes to ...