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UPSC Prelims 1983Question 84Environment

“Mulching” the soil is a process whereby

Options

  1. (a)Big pieces of soil are broken down into smaller pieces
  2. (b)The field is irrigated at regular intervals
  3. (c)Transplanting of seedlings take place
  4. (d)Loose material, dung, etc. are laid on the ground to prevent excessive evaporation or erosion of the soil

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