Q. No.The world’s most problematic aquatic weed, “The terror of Bengal”, is the name given to:
1.
Zostera
2.
Ceratophyllum
3.
Eichhornia
4.
Parthenium
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An increase in concentration of the intoxicant at successive trophic levels is known as:
| 1. | Eutrophication | 2. | Biomagnification |
| 3. | Bioremediation | 4. | Biofortification |
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High concentrations of accumulated DDT in birds:
1. kills pathogens in their blood
2. causes sterility by affecting gametogenesis
3. leads to premature breaking of eggs
4. causes spasticity of the muscles of the body
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What was added in 1987 as a pollutant to The Air (Prevention and Control of Pollution) Act, [originally passed in 1981]?
1. radioactive wastes
2. CFCs
3. ground level ozone
4. noise
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Which of the following statements is not true regarding CNG?
1. It is non-polluting
2. It burns more efficiently than petrol and diesel
3. It cannot be siphoned off by thieves
4. It cannot be adulterated
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According to CPCB, what particulate size is most harmful to humans:
1. more than 10 micrometers
2. between 5 to 10 micrometers
3. between 2.5 and 5 micrometers
4. less than 2.5 micrometers
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Photochemical smog is formed in traffic congested cities where the conditions are:
1. cool and intense solar radiation
2. cool and less solar radiation
3. warm and intense solar radiation
4. warm and less solar radiation
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