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IGCSE O Level Biology Exam Prep: Practice Test 12 (Chapter 7)

Effects of Human Activity on Ecosystem Notes Questions & Answers PDF Download - 12

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The Effects of Human Activity on Ecosystem Notes Questios and Answers PDF (Effects of Human Activity on Ecosystem Quiz Answers PDF e-Book) download Ch. 7-12 to study IGCSE O Level Biology Course. Solve Soil Erosion MCQs, Effects of Human Activity on Ecosystem quiz answers PDF to study e-learning courses. The Effects of Human Activity on Ecosystem Notes App Download: Free IGCSE O Level Biology App to learn causes of pollution: biology, pesticides: o level biology, pollution: bod and eutrophication career test for SAT subject tests.

The Quiz: Flood may be an outcome if; "Effects of Human Activity on Ecosystem" App APK Download [Free] with answers: eroded soil gets deposited in rivers and streams, trees do not retain water, and water levels rise rapidly in rivers to study e-learning courses. Practice Soil Erosion Quiz Questions, download Kobo eBook (Free Sample) to study e-learning courses.

Effects of Human Activity on Ecosystem Test Questions and Answers PDF Download: MCQ 12

MCQ: 56

Flood may be an outcome if

  1. trees do not retain water
  2. eroded soil gets deposited in rivers and streams
  3. water levels rise rapidly in rivers
  4. all of above
MCQ: 57

Incomplete burning of fuel causes

  1. decrease in annual rain fall
  2. decay of fossil fuels
  3. rapid sheet erosion
  4. pollution
MCQ: 58

Pests may be not be destroyed through

  1. Parasites
  2. Insecticides
  3. Herbicides
  4. Pesticides
MCQ: 59

Process by which harmful substances are added to environment is called as

  1. Silting
  2. Pollution
  3. Desertification
  4. Flooding
MCQ: 60

The higher the BOD, the

  1. lower the water pollution
  2. lesser the bacteria in it
  3. more the water pollution
  4. the more the air pollution

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

Effects of Human Activity on Ecosystem Notes App

O Level Biology Notes App (iOS & Android)

O Level Biology Notes App

9th Grade Biology Notes App (iOS & Android)

9th Grade Biology Notes App

Zoology Notes App (Android & iOS)

Zoology Notes App