Question

Chemical fertilisers add nutrition to the soil. So, how do they cause soil pollution?​

Answer 1

• Fertilisers and pesticides are added to increase the soil’s fertility, but over a period of time, they are responsible for the depletion in its quality. ​

• The continuous use of fertilisers and pesticides increases the acidity of the soil, and microorganisms present in the soil are extremely sensitive to the changes in the pH of soil. ​

• ​As a result, when the acidity of the soil increases over a limit, these microorganisms are no longer able to survive on the piece of land, hence making it devoid of organic matter, which is essential for maintaining the quality of soil.​

• Thus, chemical fertilizers cause degradation in the quality of soil, leading to loss of fertility is known as soil pollution. ​