Q. Consider the following statements:
1.The process of vertical heating of the atmosphere is known as convection.
2.The transfer of heat through horizontal movement of air is called advection.
Which of the statements given above is/are correct?

[A] 1 only

[B] 2 only

[C] Both 1 and 2

[D] Neither 1 nor 2

Answer: C
Notes:

Explanation: The air in contact with the earth rises vertically on heating in the form of currents and further transmits the heat of the atmosphere.

  • This process of vertical heating of the atmosphere is known as convection. The convective transfer of energy is confined only to the troposphere.
  • The transfer of heat through horizontal movement of air is called advection. The horizontal movement of the air is relatively more important than the vertical movement.

Source: NCERT – Fundamental of Physical Geography