Non-biodegradable plastics harm aquatic animals because they

  1. are decomposed quickly
  2. are fertilisers
  3. can trap animals or be eaten
  4. dissolve and add oxygen
Answer

C) can trap animals or be eaten

Plastics persist and cause harm. O Level Biology · Topic 19 Relationships of Organisms with One Another and with the Environment · 19.4 Effects of humans on ecosystems

Biology MCQ · More O Level Biology: Organisms and the Environment MCQs · Practise