Question

Which one of the following is a biodegradable pollutants?

• A. Cowdung
• B. DDT
• C. Lead Vapour
• D. Plastic

Answer 1

The correct option is A Cowdung

The biodegradable substances can be degraded with the decomposition activity of the microbes. The cow dung is the pollutant which is the waste produced by the animals like cattle. The cow dung mainly contains the cellulosic fibres. This is a biodegradable form of pollutant which can be decomposed by the enzyme cellulase produced by the microbes. DDT is a pesticide, the lead vapour is produced due to combustion of leaded fuels and plastic is a synthetic polymer. These materials cannot be degraded.

Thus, the correct answer is option A.