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Which of the following statements is/are correct, with reference to Inter-Tropical Convergence Zone? 1. It is a low-pressure zone located at the equator where Trade Winds converge. 2. In this zone, air tends to descend. 3. In July, it is located around 200 N-250 N latitudes.  Which of the following statements given above is/are correct?

Which of the following statements is/are correct, with reference to Inter-Tropical Convergence Zone? 1. It is a low-pressure zone located at the equator where Trade Winds converge. 2. In this zone, air tends to descend. 3. In July, it is located around 200 N-250 N latitudes.  Which of the following statements given above is/are correct? Correct Answer 1 and 3 only

The correct answer is 1 and 3 only.

Important Points

  • 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. Hence statement 1 is correct and 2 is not correct.

Key Points

  • In July, the ITCZ is located around 20o N 250 N latitudes (over the Gangetic plain), sometimes called the monsoon trough. Hence statement 3 is correct.
    • This monsoon trough encourages the development of thermal low over north and northwest India.
  • Due to the shift of ITCZ due to the apparent movement of the sun, the trade winds of the southern hemisphere cross the equator between 400 and 600 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.

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