Do you think microbes can also be used as source of energy ? If yes, how ?

Do you think microbes can also he used as source of energy? If yes. how?

Microbes can also be used as source of energy. Substantiate with suitable exmples.

How microbes can be used as biofertilizers?

Do you think microbes enrich the fertility of soil ? If yes, how ?

Do you think that friends can Influence one to take alcohol/drugs? If yes. how may one protect himself/herself from such an Influence?