Assertion A: Cow dung is used for the product | vedclass

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(A) $1$. Biogas is a mixture of gases (predominantly $CH_4$) produced by the microbial activity.$2$. Certain bacteria,which grow anaerobically on cell

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$A$ and $R$ are both true and $R$ is the correct explanation of $A$.

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(A) $1$. Biogas is a mixture of gases (predominantly $CH_4$) produced by the microbial activity.$2$. Certain bacteria,which grow anaerobically on cellulosic material,produce large amounts of $CH_4$,$CO_2$,and $H_2$. These bacteria are collectively called methanogens.$3$. Methanogens are commonly found in the anaerobic sludge during sewage treatment and in the rumen (a part of the stomach) of cattle.$4$. The excreta (dung) of cattle,commonly called 'gobar',is rich in these bacteria. Therefore,cow dung is used for the production of biogas.$5$. Thus,both Assertion $A$ and Reason $R$ are true,and $R$ is the correct explanation of $A$.

Assertion $A$: Cow dung is used for the production of biogas.
Reason $R$: Cow dung is rich in methanogens.
Which option is correct for Assertion $A$ and Reason $R$?

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Assertion $A$: Cow dung is used for the production of biogas.Reason $R$: Cow dung is rich in methanogens.Which option is correct for Assertion $A$ and Reason $R$?