Give two advantages of using bio-gas as a source of power

Give two advantages of using bio-gas as a source of power.

Answer

• Bio-gas is clean, non-polluting, cheap.
• The sludge left behind act as a rich fertilizer
• It can be installed with less capital investment, cost effective.
• Eco-friendly, easily available, reduce dependence on fossil fuel, renewable, sustainable.

• Exam Year: 2019