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All of the following statements are correct with respect to a biogas plant except
(a)It has a floating cover that keeps on rising as gas is produced.
(b)It consists of a – to – foot – deep tank in which biowastes are collected and a slurry of dung is fed.
(c)Spent slurry may be used as fertilizers.
(d)Main gases produced are methane, , and nitrogen oxide.

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Important Questions on Microbes in Human Welfare
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The below diagram represents a typical biogas plant. Select the correct option for A, B and C respectively?

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Assertion (A): Organisms of Monera having pseudomurein in cell walls are producers of biogas
Reason (R): Archaebacteria present in the gut of ruminants animals produce methane

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All of the following statements concerning the Actinomycetes filamentous soil bacterium Frankia are correct except that Frankia

