The primary constituents of biogas are

methane

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carbon dioxide

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hydrogen

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hydrogen sulphide

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Solution

The correct options are
A
methane

B
carbon dioxide

Biogas is a renewable energy source, which refers to a mixture of different gases produced by the breakdown of organic matter in the absence of oxygen. It can be produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste and food waste.

Biogas primarily consists of methane and carbon dioxide. These gases can be combusted or oxidized with oxygen and this energy release allows biogas to be used as a fuel.

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Similar questions

Question 10
The main constituent of biogas is

(a) methane
(b) carbon dioxide
(c) hydrogen
(d) hydrogen sulphide

Question 10
The main constituent of biogas is

(a) methane
(b) carbon dioxide
(c) hydrogen
(d) hydrogen sulphide

	I		II		III
(a)	BOD	(i)	Supernatant as effluent	(p)	Useful aerobic microbes
(b)	Flocs	(ii)	Measure of organic matter	(q)	All settled solids
(c)	Primary sludge	(iii)	Masses of bacteria associated with fungi	(r)	Methane hydrogen sulphide carbon dioxide
(d)	Biogas	(iv)	Anaerobic sludge digester	(s)	Polluting water has more BOD

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