- 1(current)
Q. No.| I. | protozoa | II. | Viruses |
| III. | Viroids | IV. | Prions |
| 1. | Only I, II and III | 2. | Only I, III and IV |
| 3. | Only II, III and IV | 4. | I, II, III and IV |
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In the given diagram, the gas X can be:
| 1. | Hydrogen sulfide | 2. | Carbon monoxide |
| 3. | Ammonia | 4. | Oxygen |
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| Assertion (A): | Microbes produce different types of gaseous end-products during growth and metabolism. |
| Reason (R): | The type of gas produced depends upon the microbes and the organic substrates they utilise. |
| 1. | (A) is true but (R) is false. |
| 2. | Both (A) and (R) are true and (R) correctly explains (A). |
| 3. | Both (A) and (R) are false. |
| 4. | Both (A) and (R) are true but (R) does not explain (A). |
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Biogas is a mixture of:
1. Methane, Carbon dioxide, and Hydrogen sulfide
2. Methane, Carbon dioxide, and Ammonia
3. Methane, Ammonia, and Hydrogen sulfide
4. Ammonia, Carbon dioxide, and Hydrogen sulfide
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| Statement I: | Gobar gas is biogas, but not all biogas can be called gobar gas. |
| Statement II: | Gobar gas strictly refers to cow dung biogas obtained from the anaerobic digestion of cow dung only, however, the final product isn’t much different, and gobar gas is usually called biogas by subject matter experts. |
2. Only Statement I is correct.
3. Only Statement II is correct.
4. Both Statement I and Statement II are incorrect.
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The part of the complex stomach of ruminants that has methanogens present is the:
| 1. | Omassum | 2. | Abomasum |
| 3. | Rumen | 4. | Reticulum |
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The technology of biogas production from cow dung was developed in India largely due to the efforts of:
| 1. | Gas Authority of India |
| 2. | Oil and Natural Gas Commission |
| 3. | Indian Agricultural Research Institute and Khadi & Village Industries Commission |
| 4. | Indian Oil Corporation |
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The major problem with the use of chemicals to control plant diseases and pests is:
1. High cost
2. Ineffectivity against most pathogens
3. Difficulty in production
4. Non-specific nature
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- 1(current)
Q. No.
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