Question

Given below are two statements:
Statement I: Circulation of air over tropics is dominated by Hadley cell and Walker cell.
Statement II: Hadley cell is associated with N-S direction and Walker cell is associated with E-W direction.
In light of the above statements, choose the most appropriate answer from the options given below:

• A. Both Statement I and Statement II are true
• B. Both Statement I and Statement II are false
• C. Statement I is correct but Statement II is false
• D. Statement I is incorrect but Statement II is true

Hint:

Atmospheric circulation:
- Hadley cell: N-S circulation (equator to subtropics).
- Walker cell: E-W circulation (tropical Pacific).
- Both dominate tropical circulation.

Answer 1

The Correct Option is A

Step 1: Understanding the Question:
This question tests knowledge of atmospheric circulation patterns.

Step 2: Detailed Explanation:
The tropics are dominated by the Hadley cell (north-south circulation) and the Walker cell (east-west circulation).
The Hadley cell is driven by convection at the equator.
The Walker cell is associated with the east-west movement of air in the tropics (related to El Niño).
Thus, both statements are true.

Step 3: Final Answer:
Thus, both statements are true, which corresponds to option (A).
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