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Question

Which among the following can be considered as a control measure for soil pollution?
  1. Burying/rotting of dead plants and animals in the soil
  2. Indiscriminate use of pesticides, insecticides and fertilizers
  3. Dumping of wastes in sea water
  4. Planting of crops in soil


Solution

The correct option is D Planting of crops in soil
As we know there are various sources of pollutants that causes adverse effects on soil. Among these pollutants, overuse of pesticides, fertilizers, insecticides, herbicides, deforestation, dumping of waste etc contribute high pollution rate in soil. 
But planting trees, no-till farming, crop rotation and such conservative methods prevent soil pollution to a great extent. 

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