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IGCSE O Level Biology Competitive Exam: Practice Test 5 (Chapter 7)

Effects of Human Activity on Ecosystem Multiple Choice Questions (MCQs) PDF Download - 5

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Effects of Human Activity on Ecosystem MCQs with Answers PDF Download: MCQ Quiz 5

MCQ: 21

Chronic bronchitis and emphysema are more vulnerable to

  1. acid rains
  2. water pollutants
  3. smog
  4. nitrogen oxides
MCQ: 22

Carboxyhemoglobin is formed if

  1. CO2 is allowed to mix with hemoglobin
  2. if CO is allowed to react with hemoglobin
  3. if long term exposure to lead and lead poisoning occurs
  4. if carbon is allowed to react with hemoglobin
MCQ: 23

Large gene pool enables

  1. conservation of natural resources
  2. depletion of natural resources
  3. conservation of artificial resources
  4. depletion of artificial resources
MCQ: 24

Use of non-fossil fuel in factory may

  1. help in lesser air pollution
  2. increase pollution due to chimney fumes when fossil fuel is burnt
  3. lower the air quality in densely populated areas
  4. increase land pollution
MCQ: 25

If water containing DDT (dichloro-diphenyl-trichloroethane: C14H9O5) is fed upon by cattle, it will

  1. get stored in the liver
  2. get stored in the fatty tissues of animals
  3. be excreted out with urine
  4. get stored in the muscle fibers

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

Effects of Human Activity on Ecosystem MCQ App

O Level Biology MCQ App (iOS & Android)

O Level Biology MCQ App

10th Grade Biology MCQs App (iOS & Android)

10th Grade Biology MCQs App

9th Grade Biology MCQs App (Android & iOS)

9th Grade Biology MCQs App