Gobar gas contains mainly:
Correct answer: D. CH 4 + CO 2
- A. CO 2 + H 2
- B. CO 2 + H 2 O
- C. CH 4 only
- D. CH 4 + CO 2
Explanation
Biogas or gobar gas is a methane rich fuel gas produced by anaerobic breakdown or digestion of biomass with the help of methanogenic bacteria. It is made up of methane (50 - 70%), carbon dioxide (30 - 40%) with traces of nitrogen, hydrogen sulphide and hydrogen.
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Ecosystems include biotic and abiotic components, food chains and webs, energy flow, nutrient cycles, populations and ecological relationships. Pollution and conservation cover air, water, soil and noise pollution, their effects on organisms, biodiversity loss, protected areas, sustainable resource use and methods for reducing environmental damage.
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