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Question

Which one of the following is the main cause of land degradation in Punjab?


A

Intensive cultivation

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B

Deforestation

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C

Over irrigation

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D

Overgrazing

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Solution

The correct option is C

Over irrigation


The correct answer is option (c) – Over irrigation

  • Apart from Punjab the other regions facing land degradation due to over irrigation are Western Uttar Pradesh and Haryana.
  • Over irrigation leads to water logging which in turn leads to increase in the alkalinity and salinity.
  • In Punjab the net sown area is 10% of the total area.
  • Even in Haryana the percentage of net sown area is almost the same as Punjab.
  • In states like Manipur, Mizoram, Arunachal Pradesh the net sown area is less than 10% of the total area.
  • Deforestation is the main cause of land degradation in states like Odisha, Madhya Pradesh, Chhattisgarh, Jharkhand.
  • Overgrazing is the main cause of land degradation in states like Maharashtra, Madhya Pradesh, Rajasthan, Gujarat.
  • Different forces of nature activities of decomposers, glaciers, wind, running water, temperature contribute to the soil formation.
  • Climate, Relief, bedrock or parent rock, time, vegetation and different forms of life are important factors in the formation of soil.
  • Soil consists of inorganic materials and organic materials.

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