Explain some harmful effects of agricultural practices on the enviroment .

Explanation

Excessive feling of trees for agricultural purposes causes deforesting and duringrainfall, may also result in soil erosion. Excess drainage of groundwater for irrgation purposes lowers the water table. This results in acute water shortage at many places. Synthetic fertilizers and pesticides used in the fleld, during rainfall, are washed away to rivers and other water bodies causing water pollution. The chemical pesticides, being non-biodegradable, accumutate In organisms in increasing amounts at each trophic level (biomagnification).