Heating of environmentis done by

As a result of global warming, the sea level will

Mark the statement that describes the eco-friendly disposal of municipal solid-waste

What percentage of solar radiation is reflected in the outer space by trophosphere ?

All organic substance found in the biosphere necessarily contain –

The region lies up to 50 km from the earth above the troposphere is called –

Gastro intestinal disturbances is caused by

Full form of B.O.D. is –

B.O.D. test of biological oxygen demand test is made for measuring –

In B.O.D. test oxygen plays an important role to –