Explain some harmful effects of agricultural practices on the environment.

Explanation

Some harmful effects of agricultural practices on the environment are as follows
(i) Soil degradation Extensive cropping causes loss of soil fertility ,Also over the time it can laed to soil erosion and finally to desertification.
(ii) Pollution Use of synthetic fertilisers and pesticides leads to soil, water and air pollution.
(iii) Water shortage Excess use of ground water for agriculture lowers the water table.
The results in acute water shortage at many places.
(iv) Bio-magnification The chemical pesticides, being non-biodegradable accumulates in organisms in increasing amounts at each trophic level.
(v) Indiscriminate felling of trees for agriculture has resulted in loss of habital for widlife. Thus, it also causes damage to natural ecosystem.