Question

Select the false statement about cyclone.

• A. The cyclones originating in the northern hemisphere rotate counter-clockwise.
• B. Cyclones are centered on areas of high atmospheric pressure.
• C. Cyclones are centered on areas of low atmospheric pressure.
• D. Cyclone is characterized by inward spiraling winds.

Answer 1

The correct option is B

Cyclones are centered on areas of high atmospheric pressure.

In a cyclone, the warm moist air over the ocean rises from the surface in the upward direction, resulting in the formation of low pressure zone over the surface. Air from the surrounding region, with higher pressure pushes into the low pressure area. Thus we can say that cyclones are centered on areas of low atmospheric pressure and not on high atmospheric pressure.
A cyclone's spin and the direction of spin is determined by a phenomenon called coriolis effect. That is why cyclones originating in the northern hemisphere rotate counter-clockwise.