Chemistry · Environmental Chemistry
गोबर से बनने वाली बायोगैस में मीथेन (CH 4 ) की सामान्य मात्रा लगभग कितनी प्रतिशत होती है?
- 160%✓
- 250%
- 340%
- 430%
सही उत्तर देखें
60%
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