Question

why is levelling necessary

Answer 1

leveling is necessary because

1)loss of moisture from ploughed
2)water logging in the field and thus helps in uniform irrigation
3) loss of upper layer of soil from being blown away by the wind

hope u understand

Answer 2

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The levelling of ploughed fields prevents the top fertile soil from being carried away by strong winds or washed away by rain water. The levelling of ploughed fields helps in the uniform distribution of water in the fields during irrigation. The levelling of ploughed fields helps in preventing the loss of moisture.