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IGCSE O Level Biology Entrance Tests: Practice Test 18 (Chapter 7)

Effects of Human Activity on Ecosystem Multiple Choice Questions (MCQ) PDF Download - 18

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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. 7-18 to study IGCSE O Level Biology Course. Solve Eutrophication: O Level Biology MCQs, Effects of Human Activity on Ecosystem quiz answers PDF to study online courses. The Effects of Human Activity on Ecosystem Notes App Download: Free IGCSE O Level Biology App to learn o level biology, causes of pollution: biology, pollution: bod and eutrophication, recycling: waste disposal career test for online degree programs.

The Quiz: Dead algae and plants are decomposed by; "Effects of Human Activity on Ecosystem" App APK Download [Free] with answers: fungi, bacteria, virus, and detritivores to study online courses. Practice Biology Practice Test Quiz Questions, download Kobo eBook (Free Sample) to study online courses.

Effects of Human Activity on Ecosystem Test Questions and Answers PDF Download: MCQ 18

MCQ: 86

Dead algae and plants are decomposed by

  1. bacteria
  2. fungi
  3. virus
  4. detritivores
MCQ: 87

In ecosystem ,Silting means

  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: 88

Acidic waste products can be made less harmful if treated with

  1. water
  2. alkalis
  3. base
  4. sulphuric acid
MCQ: 89

The word BOD refers to the

  1. Bidding of Dermatology
  2. Binding of Dirt
  3. Biochemical occupied Date
  4. Biochemical Oxygen demand
MCQ: 90

Conserving metals may decrease

  1. environmental pollution only
  2. waste disposal only
  3. minerals in the crust
  4. environmental pollution and waste disposal

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

Effects of Human Activity on Ecosystem MCQs App

O Level Biology MCQs App (iOS & Android)

O Level Biology MCQs App

Molecular Biology MCQ App (iOS & Android)

Molecular Biology MCQ App

SAT Biology MCQ App (Android & iOS)

SAT Biology MCQ App