Which of the following is the primary factor responsible for the formation of a cyclone?
A
Warm moist air
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B
Hot dry air
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C
Cold moist air
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D
Moist air
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Solution
The correct option is A Warm moist air Tropical cyclones are like giant engines fueled by the warm and moist air in the tropical regions of the Earth. The warm and humid air rises upwards from the surface of the ocean. This creates an area of low pressure. The low-pressure region is filled by the cold air rushing in from the surroundings. The moist air rises and cools the water in the air to form clouds. The whole system of clouds and winds become stronger and form a spiral that transforms into a cyclone.