Chapter 6: Water

Q&A -Ask Doubts and Get Answers

Q
Water

Question:

Which of the following statements are “true”?

(a) Water vapour is present in air only during the monsoon. ( )

(b) Water evaporates into air from oceans, rivers and lakes but not from the soil.( )

(c) The process of water changing into its vapour, is called evaporation.( )

(d) The evaporation of water takes place only in sunlight.( )

(e) Water vapour condenses to form tiny droplets of water in the upper layers of air where it is cooler.( )

Answer:

(a) Water vapour is present in air only during the monsoon. (False)

Correct answer: Water vapour is always present in the air in all seasons.

(b) Water evaporates into air from oceans, rivers and lakes but not from the soil. (False)

Correct answer: Water evaporates into air from oceans, rivers, lakes, and the upper layer of the soil.

(c) The process of water changing into its vapour, is called evaporation. (True)

(d) The evaporation of water takes place only in sunlight. (False)

Correct answer: It is possible for water to get evaporated in the absence of sunlight also. The air gets warmed during the daytime that can cause the evaporation of water in absence of sunlight.

(e) Water vapour condenses to form tiny droplets of water in the upper layers of air where it is cooler. (True)


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