In which part of the atmosphere ‘good ozone’ is found?
1. Troposphere                       2. Stratosphere
3. Ionosphere                        4. Exosphere

Subtopic:  Ozone Layer Depletion |
 93%
Level 1: 80%+
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Which one is not an effect of increase in the level of greenhouse gases?
1. CO2 fertilisation effect.
2. EI Nino effect.
3. Snow blindness.
4. Warming of troposphere and cooling of stratosphere and thermosphere

Subtopic:  Green House Effect & Global Warming |
 53%
Level 3: 35%-60%
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Which statement is incorrect for photochemical smog?
1. It is mainly O3, PAN and NOX.
2. It is called brown air and grey air.
3. It causes blue-baby syndrome.
4. It is formed in traffic congested cities where warm condition and intense solar radiations are present.

Subtopic:  Air Pollution |
 67%
Level 2: 60%+
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It has been recommended that storage of nuclear waste, after sufficient pre-treatment, should be done in suitably shielded containers buried within rocks about _____ deep below the earth’s surface.

1. 100 m

2. 50 m

3. 500 m

4. 200 m

Subtopic:  Agrochemical & Radioactive Waste |
 87%
Level 1: 80%+
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Practical, hygienic, efficient and cost effective solution to human waste disposal is :-
1. Natural toilets

2. Eco-friendly toilets

3. Eco-san toilets

4. Biological sanitation

Subtopic:  Water Pollution: II | Water Pollution |
 91%
Level 1: 80%+
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In which device the exhaust is passed through a spray of water or lime for removal of gases as well as particles ?

1. ESP
2. Scrubber
3. Catalytic converter
4. Both (1) and (2)

Subtopic:  Air Pollution |
 77%
Level 2: 60%+
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Select the correct match with respect to pollutants :-

I                                                              II

1. Itai-Itai                                                i.Cd

2. Methaemoglobinemia                         ii. Hg

3. Acid Rain                                             iii. CFC

4. Most effective green house gas           iv. Stone cancer

Subtopic:  Green House Effect & Global Warming |
 70%
Level 2: 60%+
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Which phenomenon is indicated by below reaction:-
HC+NO+O2UV/LightO2+PAN+O3

1. Acid rain
2. Photochemical smog
3. Ozone depletion
4. Sulphur smog

Subtopic:  Air Pollution |
 82%
Level 1: 80%+
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Catalytic converter of automobiles converts unburnt hydrocarbons into

1.  NO2andCO2

2.  H2SandNO2

3.  CO2andH2O

4.  H2OandSO2

Subtopic:  Air Pollution |
 78%
Level 2: 60%+
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Painful skeletal deformity due to cadmium is

1.  Minimata

2.  Uremia

3.  Itai-itai

4.  Black foot disease

Subtopic:  Water Pollution: II | Water Pollution |
 80%
Level 1: 80%+
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