Eutrophication O Level Biology MCQs Quiz Online Tests pdf Download

Practice MCQs on eutrophication o level biology, biology MCQs for online test prep. Effects of human activity on ecosystem quiz has multiple choice questions (MCQ), eutrophication o level biology quiz questions and answers as submerged algae and plants die due to, answer key with choices as death of fish on which they feed, less water available for them, less oxygen in water and blockage of sunlight due to profuse growth for competitive exam prep. Free study guide is to learn eutrophication o level biology quiz online with MCQs to practice test questions with answers.

MCQs on Eutrophication O Level Biology Quiz pdf Download

MCQ. Submerged algae and plants die due to

  1. death of fish on which they feed
  2. less water available for them
  3. less oxygen in water
  4. blockage of sunlight due to profuse growth

D

MCQ. Eutrophication is a

  1. good sign for ecosystem
  2. is a bad sign for ecosystem
  3. neutral sign for ecosystem
  4. dual-sided sign for ecosystem

B

MCQ. Use of chemical fertilizers causes

  1. gaseous pollution
  2. water pollution
  3. air pollution
  4. all of these

B

MCQ. Dead algae and plants are decomposed by

  1. bacteria
  2. fungi
  3. virus
  4. detritivores

A

MCQ. Profuse growth of bacteria result in

  1. death of algae
  2. death of aquatic plants
  3. death of fish
  4. lesser nutrients in water

C