Wind blowing in a spiral form around a region of low atmospheric pressure is a:
Wind blowing in a spiral form around a region of low atmospheric pressure is a:
(A) Hurricane
(B) Cyclone
(C) Anti-cyclone
(D) Tornado
In a cyclone, the wind spirals inward to a center with low pressure. It rotates counter-clockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. Therefore, the correct answer is (B) Cyclone. A cyclone is a wind system with low air pressure and spiraling winds inward to the center. The winds move to the center and rise.
Hurricane: It is a tropical cyclone occurring in the Atlantic Ocean and the northeastern Pacific Ocean.
Anticyclone: It is the winds spiraling outward from the center with high air pressure.
Tornado: It is a column of rotating air extending from the base of a thunderstorm to the ground.