Question

Most harmful environmental pollutants are
(a) biodegradable compounds
(b) corrosive agents
(c) non biodegradable chemicals
(d) all of the above

Answer 1

Answer:

(c) non biodegradable chemicals is correct

Answer 2

Most harmful environmental pollutants are

(c) non biodegradable chemicals

Explanation:

Non biodegradable substances are those which take thousands and millions of years to degrade and breakdown naturally.

These are the most harmful type of pollutants because once manufactured and dumped, they do not degrade and have an adverse effect on the environment.

Non biodegradable materials like plastics are eaten by domestic animals and fishes which causes diseases. I also reduces the quality of soil and affects plant growth.

Non biodegradable oils are sometimes dumped into water bodies like lakes and oceans which causes death and disease in aquatic animals.