Which of the following is a biodegradable pollutant?

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Domestic waste

DDT

Mercury salts

Aluminium foil

answer is A.

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Detailed Solution

● Pollutants that are biodegradable in nature are ones that can be broken down into simpler, harmless chemicals over time (by the activity of microorganisms such as specific bacteria). Household waste (junk), urine, faeces, sewage, agriculture leftovers, paper, wood, cloth, bovine dung, animal bones, leather, wool, vegetable matter, and plants are all biodegradable pollutants.
● Non-biodegradable pollutants include:Non-biodegradable pollutants are pollutants that cannot be broken down into simpler, harmless chemicals in nature. Non-biodegradable contaminants include DDT, plastics, polythene, bags, insecticides, pesticides, mercury, lead, arsenic, metal items such as aluminium cans, synthetic fibres, glass objects, iron products, and silver foils.

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