Eutrophication O Level Biology MCQs Quiz Online PDF Download

Learn eutrophication o level biology MCQs, O level biology test for online courses learning and test prep to practice. Effects of human activity on ecosystem quiz has multiple choice questions (MCQ), eutrophication o level biology quiz questions and answers to learn for IGCSE ordinary level online tests.

IGCSE biology practice test MCQ on submerged algae and plants die due to with options death of fish on which they feed, less water available for them, less oxygen in water and blockage of sunlight due to profuse growth problem solving skills for viva, competitive exam prep, interview questions with answer key. Free study guide is for online learning eutrophication o level biology quiz 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. 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