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Multiple Choice Questions

Which of the following correct 1 The evaporation leads to the cooling of adjace...........

Geography and Environment World climates

Which of the following correct?

1. The evaporation leads to the cooling of adjacent air.

2. The basis for all factors which favour evaporation is the vapour pressure at a water surface.

3. The specific humidity of air remains constant when there is no gain or loss of moisture, through the absolute humidity changes.

4. The dew-point temperature is the temperature at which condensation starts if the air is sufficiently cooled

Select the correct answer from the codes given below.

1, 2, 3

1, 2, 3, 4

1, 2, 4

2, 3, 4

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Explanation:

1. The evaporation leads to cooling of adjacent air because during evaporation the particle of the liquid absord energy from the surroundings to regain the energy lost during evaporation. The absorbtion of heat from the surrounding makes the adjacent air cool.

2. The pressure exerted by the gas in equilibrium with a solid or liquid in a closed container at a given temperature is called the vapor pressure. Any substance with higher vapor pressure will evaporate more quickly than a substance with lower vapor pressure.

3. Third statement is correct and self explanatory.

4. Condensation will form on any object when the temperature of the object is at or below the dew point temperature of the air surrounding the object.

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