Acid rain is caused by increases in the atmospheric concentration of?
1.
2.
3.
4.
A scrubber in the exhaust of a chemical industrial plant removes:
1. Gases like sulphur dioxide
2. Particulate matter of the size 5 micrometer or above
3. Gases like ozone and methane
4. Particulate matter of the size 2.5 micrometer or less
1. | UNEP - United Nations Environmental Policy |
2. | EPA - Environmental Pollution Agency |
3. | IUCN -International Union for Conservation of Nature and Natural Resources |
4. | IPCC -International Panel for Climate Change |
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
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 |
1. 2.5 or less
2. 1.5 or less
3. 1.0 or less
4. 5.2 or 2.5
In a coal fired power plant, electrostatic precipitators are installed to control the emission of:
1.
2.
3. SPM
4. CO
Photochemical smog pollution does not contain:
1. ozone
2. nitrogen dioxide
3. carbon dioxide
4. PAN (Peroxy Acyl Nitrate)