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What is ploughing?

  1. It is a method to protect crops from pests
  2. It is the process of nitrogen cycle
  3. It increases the number of bacteria
  4. The process of loosening of soil

Answer: The process of loosening of soil


Long Answer:

Ploughing is the process of loosening or turning of soil. Plough is used to loose the soil. The big crumbs are broken into small crumbs.