The ozone layer of the upper atmosphere is being destroyed by : 

1. Sulphur dioxide

2. Carbon dioxide

3. Chlorofluorocarbon

4. Smog

Subtopic:  Air Pollution - Greenhouse Effect |
 93%
From NCERT
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The phenomenon in which atmospheric gases trap the heat radiations from the sun near the earth’s surface and keeps it warm is known as-

1. Natural greenhouse effect

2. Tyndall effect

3. Heating effect

4. Joule’s effect

Subtopic:  Air Pollution - Greenhouse Effect |
 92%
From NCERT
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CO gas is more dangerous than CO2 gas because : 

1. CO is capable of forming a complex with haemoglobin (carboxyhemoglobin), that is more stable than the oxygen-haemoglobin complex. 

2. CO is capable of forming a complex with haemoglobin (carboxyhemoglobin), that is less stable than the oxygen-haemoglobin complex. 

3. CO2 is capable of forming a complex with haemoglobin (carboxyhemoglobin), that is more stable than the oxygen-haemoglobin complex. 

4. CO2 is capable of forming a complex with haemoglobin (carboxyhemoglobin), that is less stable than the oxygen-haemoglobin complex. 

Subtopic:  Air Pollution - Greenhouse Effect |
 91%
From NCERT
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Gases responsible for greenhouse effect are : 
1. Carbon dioxide (CO2)
2. Ozone (O3)
3. Nitrous oxide (N2O)
4. All of the above.

Subtopic:  Air Pollution - Greenhouse Effect |
 90%
From NCERT
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... is not a greenhouse gas :-
1. Hydrogen
2. Carbon dioxide
3. Methane
4. Nitrous oxide or N2O

Subtopic:  Air Pollution - Greenhouse Effect |
 89%
From NCERT
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A non-greenhouse gas is : 
1. CO2
2. CH4
3. Chlorofluorocarbons
4. O2

Subtopic:  Air Pollution - Greenhouse Effect |
 84%
From NCERT
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In the absence of greenhouse gases -

1. Life on earth would be impossible.
2. Average temperature of the earth will decrease drastically.
3. There will be no effect on Earth
4. Both (1) and (2)

Subtopic:  Air Pollution - Greenhouse Effect |
 84%
From NCERT
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Tropospheric pollution arises due to the presence of:

1. SO2, SO3, and NO2, in the lowest layer of the atmosphere.
2. SO2, SO3, and NO2, in the uppermost layer of the atmosphere.
3. SO2, SO3, and NO2, in the middle layer of the atmosphere.
4. All of the above.

Subtopic:  Air Pollution - Greenhouse Effect |
 75%
From NCERT
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Among the following gases, the one that is not a greenhouse gas is :

1. CO

2. O3 

3. CH4

4. H2O vapor

Subtopic:  Air Pollution - Greenhouse Effect |
 59%
From NCERT
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Among the following, the one that is not a greenhouse gas is:

1. Sulphur dioxide

2. Nitrous oxide

3. Methane

4. Ozone

Subtopic:  Air Pollution - Greenhouse Effect |
 58%
From NCERT
NEET - 2019
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