Chemical that has major part in acid rain is : 

(1) HNO3

(2) H2SO4

(3) HCl

(4) H2CO3

Subtopic:  Air Pollution - Acid Rain |
 88%
From NCERT
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When rain is accompanied by a thunderstorm, the pH value of the collected rain water is :

1. Dependent upon the amount of dust in the air.

2. Slightly lower when rainwater is without a thunderstorm.

3. Slightly higher when the thunderstorm is not there.

4. Unaffected by the occurrence of thunderstorms.

Subtopic:  Air Pollution - Acid Rain |
 65%
From NCERT
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Which of the following is not one of the prime health risks associated with greater
UV radiations through the atmosphere due to depletion of stratospheric ozone?       

1. Damage to eyes
2. Increased liver cancer
3. Increased skin cancer.
4. Reduced Immune system

Subtopic:  Air Pollution - Global Warming |
 58%
From NCERT
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Which country has the greatest contribution for the hole formation in ozone layer?

1. Russia

2. Japan

3. USA

4. Germany

Subtopic:  Air Pollution - Greenhouse Effect |
 67%
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The ‘thickness’ of Stratospheric Ozone layer is measured in/on:
1. Sieverts units
2. Dobson units
3. Melson units
4. Beaufort Scale

Subtopic:  Ozone Layer Depletion |
 90%
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Gas that is not a pollutant is : 

1. Carbon monoxide

2. Nitrogen peroxide

3. Carbon dioxide

4. Sulphur dioxide

Subtopic:  Gaseous Pollutants - Oxides of C & N |
From NCERT
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Air pollution from the leakage of methyl isocyanate gas from the union carbide factory in Bhopal caused a major tragedy on:

1. Dec. 2, 1984

2. Dec 15, 1983

3. Dec.10, 1982

4. Dec. 4, 1988

Subtopic:  Gaseous Pollutants - Oxides of C & N |
 57%
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The oxygen present today in the atmosphere- 

1. Is a plant product.

2. Came from ozone.

3. Was present in the beginning.

4. Is produced by carbon dioxide.

Subtopic:  Air Pollution - Global Warming |
 71%
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Photochemical smog formed in congested metropolitan cities mainly consists of : 

1. Ozone, SO2, and hydrocarbons.

2. Ozone, PAN, and NO2

3. PAN, smoke and SO2

4. Hydrocarbons, SO2, and CO2

Subtopic:  Gaseous Pollutants - Oxides of C & N |
 71%
From NCERT
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Living in the atmosphere of CO is dangerous because it : 

1. Combines with Opresent inside to form CO2

2. Reduces organic matter of tissues.

3. Combines with haemoglobin and makes it incapable to absorb oxygen.

4. Dilutes the blood.

Subtopic:  Air Pollution - Smog |
 93%
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