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Question

Evaporation decreases by:


A

increase in temperature.

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B

increase in humidity.

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C

increase in wind speed.

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D

increase in surface area.

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Solution

The correct option is B

increase in humidity.


Explanation for correct answer:

  1. Evaporation is the process by which a liquid changes into vapors even when it is below its boiling point.
  2. Evaporation decreases with an increase in humidity because the air around us can hold a certain amount of water vapor, so when there is already a large amount of water vapor in the air, the rate of evaporation decreases.

Explanation for incorrect answers:

a) The rate of evaporation increases with the increase in temperature.

c) The rate of evaporation increases with the increase in wind speed.

d) The rate of evaporation increases with the increase in surface area.

Hence, option B) is the correct answer.


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