1. Thousands of human beings died
2. Radioactive fall-out engulfed Bhopal
3. It took place on the night of December 2/3, 1984
4. Methyl isocyanate gas leakage took place
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 the highest relative contribution to the greenhouse gases are:
1.
2.
3.
4.
Chipko movement was launched for the protection of:
1. grasslands
2. forests
3. livestock
4. wet lands
DDT residues are rapidly passed through food chain causing biomagnification because DDT is:
1. lipo 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
Biochemical Oxygen Demand (BOD) in river water:
1. | remains unchanged when algal bloom occurs |
2. | has no relationship with the concentration of oxygen in the water |
3. | gives a measure of Salmonella in the water |
4. | increases, when sewage gets mixed with river water |
Global agreement in specific control strategies to reduce the release of ozone-depleting substance was adopted by:
1. Rio de Janeiro Conference
2. The Montreal Protocol
3. The Kyoto Protocol
4. The Vienna Convention