Which one of the following pairs of gases are the major cause of Green house effect?
1. CO2 and CO
2. CFCs and SO2
3. CO2 and N20
4. CO2 and O3
Which one of the following statements is wrong in case Bhopal gas tragedy?
1. Thousands of human beings died
2. Radioactive fall out engulfed Bhopal
3. It took place in the night of December 2/3, 1984
4. Methyl isocynate gas leakage took place
Eutrophication is often seen in
1. fresh water lakes
2. ocean
3. mountains
4. deserts
A renewable exhaustible natural resource is
1. coal
2. petroleum
3. minerals
4. forest
dB is a standard abbreviation used for the quantitative expression of
1. the density of bacteria in a medium
2. a particular pollutant
3. the dominant Bacillus in a culture
4. a certain pesticide
The two gases making highest relative contribution to the greenhouse gases are
1. CO2 and CH4
2. CH4 and NO2
3. CFCs and N20
4. CO2 and N20
Chipko movement was launched for the protection of
1. grasslands
2. forests
3. liverstock
4. wet lands
DDT residues are rapidly passed through food chain causing biomagnification because
DDT is :-
1. lipid soluble
2. moderately toxic
3. non-toxic to aquatic animals
4. water soluble
Steps taken by the Government of India to control air pollution include
1. compulsory mixing of 20% ethyl alcohol with petrol and 20% biodiesel with diesel
2. compulsory PUC (Pollution Under Control) certification of petrol driven vehicles, which
tests for carbon monoxide and hydrocarbons
3. permission to use only pure diesel with a maximum of 500 ppm sulphur as fuel for
vehicles
4. use of non-polluting Compressed Natural Gas (CNG) only as fuel by all buses and
trucks
Montreal protocol aims at
1. reduction of ozone depleting substances
2. biodiversity conservation
3. control of water pollution
4. control of CO2 emission