1.
Green fufler is used against which type of pollution?

2.
Positive pollution of soil is due to:

3.
5th June is celebrated as:

4.
Effect of pollution is first marked on:

5.
Loss of forests, urbanization, increasing pollution are all due to:

6.
Biological Oxygen Demand (BOD) is a measure of:

7.
Escherichia coli is used as an indicator organism to determine pollution of water with:

8.
Besides dung, the weed that can be used in biogas production is: