Multiple choice

Why is disposal of plastics a major problem?

  1. It is a degradable substance.

  2. It is a non-biodegradable substance.

  3. It is a biodegradable substance.

  4. It is a reusable substance.

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Plastics are very useful but they do not get decomposed by microbial action, which causes many problems. It means that they are non-biodegradable.