Carbon dioxide and _________ are the green house gases.

Expand the term CNG.

Much damage to soil is caused by _______ than pollution.

Which rays enter into earth, if ozone layer is destructed

Thermal pollution reduces amount of _________ gas in water.

Prevention and control of pollution Act for water established in ___________ year.

Air contains ___ % of oxygen.

Mosquitoes breed is stagnant water and cause

Industrialization and _______ increases global warming.

Waste water released from homes and industries is called