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

 

Subtopic:  Air Pollution |
 90%
From NCERT
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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 to 5 micrometers
4. less than 2.5 micrometers

Subtopic:  Air Pollution |
 88%
From NCERT
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The most effective device to remove particulate matter from polluted air is:
1. electrostatic precipitator
2. cyclonic separator
3. trajectory separator
4. scrubber

 

Subtopic:  Air Pollution |
 94%
From NCERT
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A catalytic converter :
1. reduces unburnt hydrocarbon in auto emissions
2. converts NOx to nitrogen
3. reduces lead in the exhaust
4. converts carbon dioxide to carbon monoxide

Subtopic:  Air Pollution |
From NCERT
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The concentration of ozone in stratosphere is normally lowest during the period:-

1. February - April

2. May - July

3. July - October

4. November - January

Subtopic:  Ozone Layer Depletion |
 69%
From NCERT
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Which of the following radiatively active gases contributes the least to global warming?

1. CO2

2. CFC

3. N2O

4. CH4

Subtopic:  Green House Effect & Global Warming |
 87%
From NCERT
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To safeguard our water resources, the Water (Prevention and Control of Pollution) Act, was passed in:

1. 1951
2. 1974
3. 1985
4. 1987

Subtopic:  Water Pollution: I | Water Pollution |
 86%
From NCERT
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Eventually, the only solution for the treatment of e-wastes, provided it is carried out in an environment friendly manner, is:
1. Incineration
2. Burying in landfill sites
3. Dumping in developing countries
4. Recycling

 

Subtopic:  Solid Waste Pollution |
 73%
From NCERT
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Match each item in Column I with one item in Column II and choose the correct answer from the code given below:

           COLUMN I                                                                  COLUMN II
A. Air [Prevention and Control of Pollution] Act                          a. 1981
B. Water [Prevention and Control of Pollution] Act                     b. 1974
C. Environment [Protection] Act                                               c. 1986
D. Montreal Protocol                                                               d. 1987

Codes:
             A.            B.                   C.              D.
1.          a              b                    c               d

2.          b              a                    d               c

3.          d              c                    b               a

4.          c              d                    a               b

Subtopic:  Air Pollution | Water Pollution: II | Water Pollution |
 88%
From NCERT
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Pollution:
1. Any undesirable change in physical characteristics of air, land water and soil
2. Any undesirable change in biological characteristics of air, land water and soil
3. Any undesirable change in physical, chemical and biological characteristics of air, land water and soil
4. Any undesirable change in physical and chemical characteristics of air, land water and soil

Subtopic:  Introduction to Pollution & Types |
 86%
From NCERT
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