Domestic waste will lead to : 

1. Biodegradable pollution

2. Nondegradable pollution

3. Thermal pollution of soil

4. Air pollution

Subtopic:  Soil Pollution & Waste Management |
 83%
From NCERT
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NEET 2021 - Achiever Batch - Aryan Raj Singh

The major source of BOD in the river Ganga is 

(1) Leaf litter

(2) Fishes

(3) Human waste

(4) Aquatic plants

Subtopic:  Water Pollution - Biological Oxygen Demand |
 85%
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If a lake is contaminated with DDT, it's highest concentration would be found in :

1. Primary consumer

2. Secondary consumer

3. Tertiary consumer

4. None of the above.

Subtopic:  Water Pollution - Water Pollution & Portable Water |
 81%
From NCERT
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NEET 2021 - Achiever Batch - Aryan Raj Singh

The most harmful air pollutant produced by automobiles is:

1. HNO2

2. NOX

3. SO2

4. CO

Subtopic:  Air Pollution - Global Warming |
 63%
From NCERT
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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NEET 2021 - Achiever Batch - Aryan Raj Singh

Sewage water can be purified by

(1) Aquatic plant

(2) Microorganism

(3) Penicillin

(4) Fishes

Subtopic:  Water Pollution - Water Pollution & Portable Water |
 85%
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Major pollutant in Jet plane emission is -

(1) SO2

(2) CFC

(3) CO

(4) CCl4

Subtopic:  Air Pollution - Greenhouse Effect |
 60%
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B.O.D is-

1. The amount of O2 utilized by organisms in the water. 
2. The amount of O2 utilized by microorganisms for decomposition.
3. The total amount of O2  present in water.
4. All of the above

Subtopic:  Water Pollution - Biological Oxygen Demand |
 68%
From NCERT
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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NEET 2021 - Achiever Batch - Aryan Raj Singh

What is the intensity of sound in normal conversation 

1. 10 -20 decibal

2. 30 - 60 decibal

3. 70 - 90 decibal

4. 120 - 150 decibal

Subtopic:  Introduction |
 60%
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Which of the following is absent in polluted water

1. Hydrilla

2. Water hyacinth

3. Larva of stone fly

4. Blue green algae

Subtopic:  Water Pollution - Biological Oxygen Demand |
 53%
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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Maximum green house gas released by which country

(1) India

(2) China

(3) U.S.A

(4) Britain

Subtopic:  Air Pollution - Greenhouse Effect |
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NEET 2021 - Achiever Batch - Aryan Raj Singh
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