What are the two lessons that we have learnt from the dynamics of both environmental destruction and reconstruction? [CBSE 2013]
Ans. (i) Polluted air and water : Industries and vehicles release harmful gases and chemicals which are responsible for degradation of water and air.
(ii) Land degradation : Overuse of fertilisers and chemicals have resulted in land degradation.
(iii) Loss of biodiversity: Habitat destruction, hunting, poaching has led to the decline in biodiversity.