Global warming can be controlled by:

1.  Reducing reforestation, increasing the use of fossil fuel.
2.  Increasing deforestation, slowing down the growth of the human population
3.  Increasing deforestation, reducing the efficiency of energy usage.
4.  Reducing deforestation, cutting down the use of fossil fuel

Subtopic:  Green House Effect & Global Warming |
 90%
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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

Subtopic:  Air Pollution |
 77%
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The zone of atmosphere in which the ozone layer is found
1. Ionosphere
2. Mesosphere
3. Stratosphere
4. Troposphere

Subtopic:  Ozone Layer Depletion |
 89%
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A location with luxuriant growth of lichens on the trees indicates that the:

1. Trees are very healthy 2. Trees are heavily infested
3. Location is highly polluted 4. Location is not polluted
Subtopic:  Lichens |
 86%
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Which of the following is not one of the prime health risks associated with greater UV radiation through the atmosphere due to depletion of stratospheric ozone?
1. Reduced Immune System
2. Damage to eyes
3. Increased liver cancer
4. Increased skin cancer

Subtopic:  Ozone Layer Depletion |
 61%

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High value of BOD (Biochemical Oxygen Demand) indicates that:
1. water is highly polluted
2. water is less polluted
3. consumption of organic matter in the water is higher by the microbes
4. water is pure

Subtopic:  Microbes in Sewage Treatment |
 76%
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Rachel Carson's famous book "Silent Spring" is related to :
1. Noise pollution
2. Population explosion
3. Ecosystem management
4. Pesticide pollution

Subtopic:  Agrochemical & Radioactive Waste |

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Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers:
1. Methane
2. Nitrous oxide
3. Ozone
4. Ammonia

Subtopic:  Ozone Layer Depletion |
 91%
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Joint Forest Management Concept was introduced in India during:
1. 1990s
2. 1960s
3. 1970s
4. 1980s

Subtopic:  Green House Effect & Global Warming |
 72%
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Biochemical Oxygen Demand (BOD) may not be good index for pollution for water bodies receiving effluents from
1. sugar industry
2. domestic sewage
3. dairy industry
4. petroleum industry

Subtopic:  Water Pollution |
 57%

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