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IGCSE O Level Biology Study Material: Practice Test 15 (Chapter 7)

Effects of Human Activity on Ecosystem Quiz Questions & Answers PDF Download - 15

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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. 7-15 to study IGCSE O Level Biology Course. Solve Eutrophication: O Level Biology MCQs, Effects of Human Activity on Ecosystem quiz answers PDF for online certificate programs. The Effects of Human Activity on Ecosystem Notes App Download: Free IGCSE O Level Biology App to learn pollution: smog as cause, pollution: sewage as cause, pollution: bod and eutrophication, causes of pollution: biology career test for online college courses.

The Quiz: Use of chemical fertilizers causes; "Effects of Human Activity on Ecosystem" App APK Download [Free] with answers: water pollution, gaseous pollution, air pollution, and soil pollution for online certificate programs. Practice Causes of Pollution: Biology Quiz Questions, download Kobo eBook (Free Sample) for online certificate programs.

Effects of Human Activity on Ecosystem Test Questions and Answers PDF Download: MCQ 15

MCQ: 71

Use of chemical fertilizers causes

  1. gaseous pollution
  2. water pollution
  3. air pollution
  4. soil pollution
MCQ: 72

Major gaseous man-caused pollutant is

  1. carbon dioxide
  2. carbon monoxide
  3. sulphur dioxide
  4. nitrogen oxides
MCQ: 73

Untreated sewage may cause

  1. outbreak of epidemic
  2. cholera outbreaks
  3. typhoid outbreaks
  4. all of above
MCQ: 74

BOD measures the amount of

  1. bacteria in a given sample of water
  2. algae being decomposed in a given sample
  3. oxygen bacteria need to decompose organic matter in a given sample
  4. oxygen bacteria need to decompose organic matter in a given sample in a fixed period of time
MCQ: 75

Reaction between sulfur dioxide and oxygen results in

  1. sulfuric acid only
  2. acid rain only
  3. alkali rain
  4. sulfuric acid and acid rain

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

Effects of Human Activity on Ecosystem Quiz App

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