Answer 1

Advantages of biogas:

• It is a cheap, safe and renewable source of energy.
• It burns with a blue flame and without the production of smoke.
• It can be used in homes for lighting and cooking.
• It can be used in small-scale industries and for powering street lights.
• It improves sanitation in the region.
• It is easy to produce and store and is eco-friendly and causes no pollution.