The rate of release of nutrients into the atmosphere is regulated by –

1. pH and moisture

2. Temperature

3. Soil

4. All of the above.

Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |
 96%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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What per cent of the dry weight of organisms constitutes carbon?

1. 17%

2. 28%

3. 49%

4. 67%

Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |
 80%
From NCERT
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Which is the second abundant matter in the body of an organism?

1. Phosphorous

2. Hydrogen

3. Carbon

4. Calcium

Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |
 71%
From NCERT
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How much of the total quantity of global carbon is dissolved in the oceans?

1. 50%

2. 62%

3. 71%

4. 84%

Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |
 91%
From NCERT
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Which of the following reservoir regulates the amount of carbon dioxide in the atmosphere?

1. Ocean

2. Earth’s crust

3. Land

4. Fossil

Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |
 81%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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Approximately how much of carbon is fixed in the biosphere through photosynthesis annually.

1. 4 × 1013 kg

2. 5.4 x 1015 kg

3. 6.4 x 1011 kg

4. 13 x 104 kg

Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |
 88%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

Which of the following contribute to the atmospheric CO2?
1. Producers
2. Herbivores
3. Saprotrophs
4. All of the above

Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |
 83%
From NCERT
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How could human activities affect the carbon cycle?
1. By rapid forestation
2. By massive burning of fossil fuel for energy and transport
3. By forest fire
4. More than one of the options given above are correct

Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |
 88%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Which is the natural reservoir of Phosphorous?

1. Ocean

2. Fossils

3. Rock

4. Soil

Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |
 91%
From NCERT
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How do herbivores and other animals obtain Phosphorous?

1. From soil in the dissolved form

2. From plants

3. From drinking water

4. Synthesized in the body.

Subtopic:  Mineral Cycling & Ecosystem Services (OLD NCERT) |
 73%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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