Microbial fuel cells are considered a source of sustainable

| M: +2.00/-0.67

Microbial fuel cells are considered a source of sustainable energy. Why?

1. They use living organisms as catalysts to generate electricity from certain substrates.

2. They use a variety of inorganic materials as substrates.

3. They can be installed in waste water treatment plants to cleanse water and produce electricity.

Which of the statements given above is/are correct?

??????????? ???? ???????? ?? ?????? ????? ?? ?? ????? ???? ???? ??? ??????

1. ?? ????? ????? ?? ????? ??? ?????? ?? ????? ??????? ???? ?? ????????? ?? ??? ??? ???? ????

2. ?? ??????? ?????? ?? ????????? ??????? ?? ????????? ?? ??? ??? ????? ???? ????

3. ?????? ??????? ?? ????? ????????? ??? ??????? ???? ?? ???? ?? ???? ?? ???? ?? ????? ?? ???? ?? ????? ?? ??????? ?? ?????

??? ??? ?? ????? ??? ?? ??? ?? ??? ?? / ????

[UPSC IAS Prelims 2011]

A 1 only

1 ही

B 2 and 3 only

2 और 3 ही

C 1 and 3 only

केवल 1 और 3

D 1, 2 and 3

1, 2 और 3

...

View Full Explanation