With reference to the Inter-Tropical Convergence Zone (ITCZ), which of the following statements is/are correct? 1. In July, it shifts southwards and becomes a reason for Southwest monsoon. 2. It is a low-pressure zone located at equator where trade winds converge. Select the correct answer using the codes given below:

Q. With reference to the Inter-Tropical Convergence Zone (ITCZ), which of the following statements is/are correct?
1. In July, it shifts southwards and becomes a reason for Southwest monsoon.
2. It is a low-pressure zone located at equator where trade winds converge.
Select the correct answer using the codes given below:

[A] 1 only

[B] 2 only

[C] Both 1 and 2

[D] Neither 1 nor 2

Answer: B

Notes:

The Inter Tropical Convergence Zone (ITCZ) is a low-pressure zone located at the equator where trade winds converge, and so, it is a zone where air tends to ascend.

In July, the ITCZ is located around 20°N-25°N latitudes (over the Gangetic plain), sometimes called the monsoon trough.
This monsoon trough encourages the development of thermal low over north and northwest India.
Due to the shift of ITCZ, the trade winds of the southern hemisphere cross the equator between 40° and 60°E longitudes and start blowing from southwest to northeast due to the Coriolis force.
It becomes southwest monsoon. In winter, the ITCZ moves southward, and so the reversal of winds from northeast to south and southwest, takes place. They are called northeast monsoons.

Source: NCERT – India Physical Environment

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