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IGCSE O Level Biology Cerification Guide: Practice Test 3 (Chapter 7)

Effects of Human Activity on Ecosystem Quiz Questions & Answers PDF Download - 3

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Effects of Human Activity on Ecosystem Exam Questions and Answers PDF Download: Test 3

MCQ: 11

Problem of solid waste disposal can be reduced through

  1. recycling
  2. lesser pollution
  3. more timber
  4. population control
MCQ: 12

Non-toxic, unreactive chemicals used as cooling agents in refrigerators are known as

  1. chloroflouro bicarbonates
  2. chloroflourocarbides
  3. chloroflourocarbonates
  4. chlorofluorocarbon
MCQ: 13

Lives of organisms in ecosystem become threatened due to

  1. urbanization
  2. industrialization
  3. introduction of toxics in ecosystem
  4. rapid housing
MCQ: 14

If a substance accumulates in a body for a long time, it will be

  1. passed out through egestion
  2. passed out through excretion
  3. become insoluble in water
  4. passed on to next consumer in food chain
MCQ: 15

Most fertile layer of soil is

  1. top layer
  2. organic layer
  3. middle layer
  4. lower layer

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

Effects of Human Activity on Ecosystem Quiz App

O Level Biology Quiz App (iOS & Android)

O Level Biology Quiz App

MCAT Biology Quiz App (iOS & Android)

MCAT Biology Quiz App

A level Biology Quiz App (Android & iOS)

A level Biology Quiz App