Science · Sources of Energy
बायोगैस (गोबर गैस) के मुख्य घटक क्या हैं?
- 1उपरोक्त सभी✓
- 2नाइट्रोजन और हाइड्रोजन सल्फाइड
- 3कार्बन डाइऑक्साइड और हाइड्रोजन
- 4मीथेन और कार्बन डाइऑक्साइड
सही उत्तर देखें
उपरोक्त सभी
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