Q.1 Non-biodegradable pollutants are created by

1. nature

2. excessive use of resources

3. humans

4. natural disasters

Subtopic:  Solid Waste Pollution |
 82%
From NCERT
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Q.2 According to the Central Pollution Control Board, particles that are responsible for causing great harm to human health are of a diameter

1. 2.50 micrometers

2. 5.00 micrometers

3. 10.00 micrometers

4. 7.5 micrometers

Subtopic:  Air Pollution |
 97%
From NCERT
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Q.3 The material generally used for soundproofing of rooms like a recording studio and auditorium etc., is

1. cotton

2. )coir

3. wood

4. styrofoam

Subtopic:  Introduction to Pollution & Types |
 72%
From NCERT
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Compressed Natural Gas (CNG) is

1. propane

2. methane

3. ethane

4. butane

Subtopic:  Air Pollution |
 64%
From NCERT
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Q.5 World's most problematic aquatic weed is

1. Azolla

2. Wolffia

3. Eichhornia

4. Trapa

Subtopic:  Water Pollution |
 96%
From NCERT
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Q.6 Which of the following causes biomagnification?

1. SO2

2. Mercury

3. DDT

4. Both (b) and (C)

Subtopic:  Water Pollution |
 87%
From NCERT
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The expanded form of DDT is

1. dichloro diphenyl trichloroethane

2. dichloro diethyl trichloroethane

3. dichloro dipyridyl trichloroethane

4. dichloro diphenyl tetrachloroacetate

Subtopic:  Water Pollution |
 74%
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Q. 8 Which of the following material takes the longest time for biodegradation?

1. Cotton

2. Paper

3. Bone

4. Jute

Subtopic:  Solid Waste Pollution |
 73%
From NCERT
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Choose the incorrect statement :

1. The Montreal protocol is associated with the control of emission of ozone-depleting substances

2. Methane and carbon dioxide are greenhouse gases

3. Dobson units are used to measure the oxygen content

4. Use of incinerators is crucial to the disposal of hospital waste

Subtopic:  Ozone Layer Depletion |
 88%
From NCERT
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Q.10 Among the following which one causes more indoor chemical pollution?

1. Burning coal

2. Burning mosquito coil

3. Burning cooking gas

4. Room spray

Subtopic:  Air Pollution |
 53%
From NCERT
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