Question

Which of the following is the best use of biomass to produce energy? *
Option 1.Direct burning as fuelwood
Option 2. Burning to produce heat and electricity
Option 3. Changing to liquid fuels (Ethanol, Methanol)
Option 4. Production of biogas/gobar gas​

Answer 1

Answer:

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Answer 2

Answer:

The answer is Option 4.production of biogas/gobar gas