Name: Destruction Caused by Cyclones
Uploaded: 2019-07-19
Duration: 4 min 2 s
Description: Cyclones are among the most destructive natural phenomena. In this video, let’s learn about some of the major destruction caused by a cyclone.

Question

What is a cyclone? Name the factors which are responsible for cyclone formation. Explain the formation of cyclone.

Accepted Answer

Powerful storms with a circular formation that are formed over low-pressure areas are known as cyclones. Factors like temperature, humidity, wind speed, wind direction and rotation of Earth are responsible for cyclone formation.

Formation of the cyclone:
1. Heat from the sun increases the rate of evaporation of water from the water bodies such as seas and ocean. This also creates a low-pressure area over these water bodies. The water vapour rises up and reaches the colder regions of the atmosphere.
2. On reaching colder regions, the vapour releases heat and condenses to set up the formation of thunderstorms. The heat that is released heats up the surrounding air.

3. The surrounding air, being warm, further rises up in the atmosphere. This creates a low-pressure area which causes more air to rush towards this low-pressure area.
4. This process of creating low-pressure area is repeated several times which pushes air to move up higher and higher in the atmosphere. However, due to the rotation of the Earth, the air moves up in a spiralling pattern with a low-pressure area at its centre. Therefore, a cyclone develops where high-speed-swirling winds accompanied by thunderstorms surround a low-pressure area in the centre.

What is a cyclone? Name the factors which are responsible for cyclone formation. Explain the formation of cyclone.

Important Questions on Winds, Storms and Cyclones

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