Explain how soil pollution and soil erosion could be prevented

cbse
cbse-class-7-science
soil

#1

Explain how soil pollution and soil erosion could be prevented.

Answer:

Prevention of soil pollution:

  • To prevent soil pollution, its causes must be controlled.
  • Plastics and polythene bags destroy the fertility of soil. Hence, they should be disposed properly and if possible, their use should be avoided.
  • Some waste products from industries and homes pollute soil. These pollutants should be treated chemically to make them harmless before they are disposed.
  • Other pollutants of soil include pesticides and insecticides. Therefore, excessive use of these substances should be avoided.

Prevention of soil erosion:

  • By planting trees.
  • Checking indiscriminate cutting of trees.