The practice of renewing a forest by planting a large number of seedlings is called --------------

Which one is harmful effect of Acid rain ?

The rain water containing sulphuric acid and ----------------- is called acid rain

The cover of gases surrounding the earth is called the ------------------

---------------- harms the aquatic life or water bodies.

The combination of lithosphere, hydrosphere, atmosphere is called --------------

------------------ should be conserved to maintain ecological balance in nature.

LPG is a ----------------- fuel

Which one is example for water pollutants?

Each organism can survive only in a specific type of environment called its -----------------