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 ?
Options
(a)1 only
(b)2 and 3 only
(c)1 and 3 only
(d)1, 2 and 3
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