Mathematics · Sources of Energy
How can biomass be utilized directly or indirectly as a source of energy? 1. By burning dry biomass to release heat. 2. By anaerobic decomposition of biomass to produce biogas.
- 1Neither 1 nor 2
- 2Only 1
- 3Both 1 and 2✓
- 4Only 2
Correct answer
Both 1 and 2
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