Q.

Which agricultural activities are affecting the environment

1 Overuse of fertilisers and pesticides  
2 Using groundwater for irrigation  
3 Extensive cropping in the same area of land  
4 All of the above  

Ans.

(4)

Different agricultural activities are affecting the environment. Fertilisers and pesticides are non-biodegradable. They cause soil and water pollution. Soil loses fertility due to extensive cropping and water table is lowering due to the overuse of groundwater for irrigation.