Which among the following are considered as the positive influences of human beings on the ecosystem?1. Declaring areas as wildlife sanctuaries2. Increasing biodegradable packing materials that can be recycled3. Removing pollutants from toxic industrial smoke4. Using natural resources intensivelyChoose the correct option from the codes given below :
1.1 & 2
2.1 2 & 3
3.1 3 & 4
4.2 3 & 4
Posted Date:-2021-11-10 11:34:56