Environmental I...

In the absence of greenhouse gases, the temperature of earth's surface will fall to

Ultra-violet light causes

Ozone hole over Antarctica appears during

Ozone hole is widest over

CFCs split up in stratosphere to release chlorine by the action of

Ozone depletion shall cause higher incidence of

Ozone hole over Antarctica was first detected by

Chief air pollutant which is likely to deplete ozone layer is ________.

Measurement of rate of oxygen utilisation by a unit volume of water over a period of time is to measure

Increasing skin cancer and high mutation rate are due to _________.