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Q. No.Which of the following statements about methanogens is not correct?
| 1. | They can be used to produce biogas. |
| 2. | They are found in the rumen of cattle and their excreta. |
| 3. | They grow aerobically and breakdown cellulose-rich food. |
| 4. | They produce methane gas. |
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Subtopic: Â Microbes in Production of Biogas |
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