Question

How does organic material in the buried solid waste will decompose?

(a) By the action of oxidation

(b) By the action of microorganisms

(c) By the flow of water

(d) By the soil particles

The question was posed to me in an online interview.

My question is from Solid Waste in section Environmental Pollution of Energy Management

Answer 1

The correct choice is (b) By the action of microorganisms

To explain: The organic material in the buried solid waste will decompose due to the action of microorganisms. At first the waste decomposes aerobically until the oxygen that was present in the freshly placed fill is used up by the aerobic microorganisms.