Pollution can be controlled by-

1. Sewage treatment.

2. Checking atomic blasts.

3. Manufacturing electrically operated vehicles.

4. All of the above.

Subtopic:  Water Pollution - Water Pollution & Portable Water |
 94%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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The main factor of water pollution is:

1. Smoke

2. Industrial waste

3. Detergent

4. Ammonia

Subtopic:  Water Pollution - Water Pollution & Portable Water |
 86%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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When a lake get covered with algae, a stinking smell comes out and its water becomes unpotable. The reason for such a condition of the lake is-

1. Eutrophication.

2. Excess of oxalate ions in water.

3. Excess of non-biodegradable waste in water.

4. Excess of photosynthesis.

Subtopic:  Water Pollution - Water Pollution & Portable Water |
 84%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

A farmer was told that fishes were not fit for human consumption because a large amount of pesticides had accumulated in the tissues of fishes. This happens:

1. By the transfer of pesticides in the food chain.

2. By the degradation of pesticides.

3. By the reaction of pesticides with atmospheric oxygen.

4. By the reaction of pesticides with atmospheric carbon dioxide.

Subtopic:  Water Pollution - Water Pollution & Portable Water |
 83%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

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 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Mercury, aluminum, lead, copper, DDT, etc. are an example of :

1. Biodegradable Pollutant.

2. Non-biodegradable pollutant.

3. Non pollutant.

4. Noise pollutant.

Subtopic:  Water Pollution - Water Pollution & Portable Water |
 86%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

If water pollution continues at its present rate, it will eventually :

1. Stop the water cycle.

2. Prevent precipitation.

3. Make oxygen molecules unavailable to water plants.

4. Make nitrate molecules unavailable to water plants.

Subtopic:  Water Pollution - Water Pollution & Portable Water |
 78%
From NCERT
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Match the pollutant (s) in Column I with effect (s) in Column II.

Column I Column II
A. Oxides of Sulphur 1. Red haze in traffic and congested areas
B. Nitrogen dioxide 2. Damage to kidney
C.  Lead 3. ‘Blue baby’ syndrome
D. Nitrate in drinking water 4. Respiratory diseases

Codes

A B C D
1. 2 3 4 1
2. 1 2 3 4
3. 1 4 3 2
4. 4 1 2 3
Subtopic:  Water Pollution - Water Pollution & Portable Water |
 73%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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The major contributor to water pollution among the following is- 

1. Sound

2. SO2

3. Salts of arsenic

4. Sewage

Subtopic:  Water Pollution - Water Pollution & Portable Water |
 76%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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