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Q: Which of the following statements is true?
  • A. In a cyclonic pressure system in the northern hemisphere, winds blow in anticlockwise direction.
  • B. In a cyclonic pressure system in the northern hemisphere, winds blow in clockwise direction.
  • C. In a cyclonic pressure system, pressure at the centre is high.
  • D. In an anti-cyclonic pressure system in the southern hemisphere, winds blow in clockwise direction.
Correct Answer: Option A - Cyclone is a large scale air mass that rotates around a strong center of low atmospheric pressure .The wind direction is anti-clockwise in Northern Hemisphere and clockwise in Southern Hemisphere. So, statement (a) is correct.
A. Cyclone is a large scale air mass that rotates around a strong center of low atmospheric pressure .The wind direction is anti-clockwise in Northern Hemisphere and clockwise in Southern Hemisphere. So, statement (a) is correct.

Explanations:

Cyclone is a large scale air mass that rotates around a strong center of low atmospheric pressure .The wind direction is anti-clockwise in Northern Hemisphere and clockwise in Southern Hemisphere. So, statement (a) is correct.