Montreal Protocol aims at
Answer: Reduction of ozone depleting substances
Common indicator organism of water pollution is:
Which rays strike on earth due to depletion of ozone layer ?
Main approach for conservation of water is
BOD is ______ in polluted water and ______ in potable water.
Increase in the concentration of pollutants in higher trophic levels is known as
______ is used to convert organic pollutants into water vapour and CO2.
Which method is used to control pollutants of particulate nature ?
Answer: Electrostatic precipitators
Most abundant water pollutant is
Answer: Industrial wastes
Most hazardous metal pollutant of the automobile exhaust is
Shell of egg in bird becomes thin (not properly formed) due to the pollution of pesticides. This is due to interference in the activity of :
Most harmful environmental pollutants are
Answer: Nonbiodegradable chemicals
The atmosphere of big metropolitan cities is polluted most by
Answer: Automobile exhausts
Miscellaneous GK Questions