Consider the following statements regarding heating of Earths atmosphere 1 Atmosphere gets hea...........

Geography Atmosphere

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Consider the following statements regarding heating of Earth's atmosphere :

1) Atmosphere gets heated through convection till the Troposphere.

2) Atmosphere gets heated by short wave terrestrial radiation.

3) Heating of atmosphere through conduction is limited to only lower layers of atmosphere.

Which of the statements given above is/are correct?

1 and 3 only

2 only

1 and 2 only

3 only

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Explanation:

Statement 1 is correct : The air in contact with the earth rises vertically on heating in the form of currents and this process of vertical heating of the atmosphere is called Convection. This convective transfer of energy is confined only to the troposphere(lowermost layer of atmosphere).

Statement 2 is incorrect : Air gets heated from Long wave terrestrial radiation and not from short wave radiation.

Statement 3 is incorrect : When two objects of dissimilar temperature come in contact ,heat transfer take through process of conduction. When atmosphere comes in contact of heated earth surface then conduction starts but it is important in heating only lower layers of atmosphere.