Q. With reference to cyclone, consider the following statements:
1.Tropical cyclones cause less damage compared to land-originating cyclones.
2.Cyclones rotate counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.
3.Cold air mass over mountains is the primary cause of a land-originating cyclone.
How many of the statements given above are correct?
Red Book
Red Book

[A] Only one

[B] Only two

[C] All three

[D] None

Answer: A
Notes:

Explanations –

Statements 1 and 3 are incorrect.  Tropical cyclones are known for causing significant damage due to their intense winds, heavy rainfall, and storm surges, which can lead to severe property damage, loss of life, and flooding. Land-originating cyclones are rare and typically less intense because they lack the energy source provided by warm ocean waters. Cyclones, including land-originating ones, are primarily caused by atmospheric disturbances around low-pressure areas. The formation of cyclones generally involves the rise of warm air and the inflow of cooler air, leading to a rotating system.

Statement 2 is correct. Due to the Coriolis effect, cyclones rotate counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.

Source: The Hindu

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