Question

Which one of the following reasons is not responsible for soil degradation,?
(a) Soil particles washed away in rainwater
(b) Excess use of chemical fertilisers
(c) Adequate use of organic manure during cultivation
(d) Mixing of dirty water discharged from factories with soil​

Answer 1

Answer:

(b) excess use of chemical fertilizers .

b is the correct ans

Answer 2

The correct option is- (c) Adequate use of organic manure during cultivation.

Various reasons for degradation of soil are-

1. Soil erosion is the main cause of soil degradation when particles of soil are washed away with running water.
2. The excessive use of chemical fertilisers degrade the quality of soil and make soil infertile.
3. The water discharged from factories contains several harmful chemicals which when mixed with soil degrades its quality.

During cultivation, the use of organic manure enhances the quality of the soil. It maintains soil fertility.