O Level Courses

Chapter 7: IGCSE O Level Biology Exam Tests

IGCSE O Level Biology MCQs - Chapter 7

Effects of Human Activity on Ecosystem Multiple Choice Questions (MCQ) PDF - 6

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The MCQ: In terms of tolerance range for oxygen (O2), Tubifex worms and fish are; "Effects of Human Activity on Ecosystem" App Download Android & iOS (Free) with answers alike, differ, approximately same and opposite to learn e-learning courses. Practice pollution: pesticides and ddt quiz questions, download Apple Book (Free Sample) for colleges that offer online degrees.

Effects of Human Activity on Ecosystem Questions & Answers PDF Download: MCQ Quiz 6

MCQ 26: In terms of tolerance range for oxygen (O2), Tubifex worms and fish are

  1. differ
  2. alike
  3. approximately same
  4. opposite

MCQ 27: Disadvantages of pesticides includes

  1. healthier crops
  2. higher yield of crops
  3. non-biodegradable pesticides
  4. availability of more food

MCQ 28: Profuse growth of algae occurs due to

  1. hydrogen sulphide in water
  2. nitrates and phosphates in water
  3. carbon dioxide in water
  4. chlorine in water

MCQ 29: In which category of resources, metal lies

  1. renewable resource
  2. non-renewable resource
  3. artificial resource
  4. element

MCQ 30: Cinchona is used in making of

  1. quinine
  2. morphine
  3. pyrethrum
  4. DDT

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Effects of Human Activity on Ecosystem App (Android & iOS)

Effects of Human Activity on Ecosystem App (Android & iOS)

O Level Biology App (Android & iOS)

O Level Biology App (iOS & Android)

A level Biology App (Android & iOS)

A level Biology App (Android & iOS)

SAT Biology App (Android & iOS)

SAT Biology App (iOS & Android)