Name the person who is most remembered for the protection of Khejri trees in Rajasthan.

Name the most common practice of recharging ground water.

The pH of a river water sample as measured by pH paper is found to be What does it tell us about water?

State whether the following statement is true or false :

Chipko Andolan was associated with the conservation of wild animals such as tigers and lions.

Write the full names of

(a) CFL, and (b) CFC.