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Which of the following statements are true for floods in India? Statements: I. Tamil Nadu receives flood in winter months. II. Floods can initiate cascading effects. III. Humans do not have any role in creating or spreading floods.

Which of the following statements are true for floods in India? Statements: I. Tamil Nadu receives flood in winter months. II. Floods can initiate cascading effects. III. Humans do not have any role in creating or spreading floods. Correct Answer I and II

The correct answer is that statements I and II are true.

  • A flood is an overflow of water that submerges the areas that cause the loss of life and economy. A flood can be from a river flood, a dam burst, cyclonic flood, ocean storms, etc.
  • In India, a flood is mainly caused by monsoon bursts in low-lying areas. 

Key Points

  •  Most parts of India receive rains via the South-West Monsoon in summer.
  • However, in winters, the North-East monsoon winds push back across the nation.
  • Chennai (Tamil Nadu) typically receives most of the rain this way. It's worth noting that El Nino causes deficient rains in India during South-West Monsoon, it becomes the cause of heavy rains during North-East Monsoon.
  • A flood can be due to reasons which can be natural and human-caused.
  • Causes of flood
    • Climate Change
    • Uncertainty in Monsoon
    • Heavy rainfall in a very short duration of time causes floods in low-lying areas.
    • Encroachment of flood room areas
    • Unplanned and unscientific mining in hilly areas 
    • Unplanned construction in Urban areas 
    • Deforestation

Hence, the statement, "humans do not have any role in creating or spreading floods", is incorrect.

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