question_answer

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 wastewater treatment plants to cleanse water and produce electricity.

Which of the statement(s) given above is/are correct?

A)  Only 1             

B)  2 and 3    

C)  1 and 3           

D)  All of these