IGCSE O Level Biology Learning App | Effects of Human Activity on Ecosystem Notes e-Book PDF

IGCSE O Level Biology MCQs (O Level) From Textbook

IGCSE O Level Biology MCQs – Practice Test 16 (Chapter 7)

Effects of Human Activity on Ecosystem Notes Questions with Answers PDF Download – Test 16

Download eBook:

IGCSE O Level Biology Notes Book – Google eBook IGCSE O Level Biology Notes Book – Apple iBook IGCSE O Level Biology Notes Book – Kobo eBook

Apps:

IGCSE O Level Biology Educational App for Android IGCSE O Level Biology Educational App for iOS

Study Effects of Human Activity on Ecosystem Notes Questios and Answers PDF for biology tutorial sessions. Download the Effects of Human Activity on Ecosystem Quiz Answers PDF e-Book, Ch. 7-16 to study IGCSE O Level Biology Course. Solve Atmospheric Pollution MCQs, Effects of Human Activity on Ecosystem quiz answers PDF for biology tutorial sessions. Download IGCSE O Level Biology Notes App: Free Effects of Human Activity on Ecosystem Learning App to learn pollution: sewage as cause, pollution: smog as cause, pollution: inorganic wastes as cause, pollution causes career test to advance virtual studies.

Free IGCSE O Level Biology Notes App with MCQ: "If lead accumulation occurs for long in the body, the outcomes may include"; with answers: coma, death, and lead poisoning. Practice Learning Biology Quiz Questions, download Kobo e-Book (Free Chapter) for biology tutorial sessions.

Effects of Human Activity on Ecosystem Test Questions and Answers PDF Download: MCQ 16

MCQ 76: If lead accumulation occurs for long in the body, the outcomes may include:

  1. death
  2. coma
  3. lead poisoning
  4. all of above

MCQ 77: Hydrogen sulfide (H2S) and ammonia (NH3) are produced from:

  1. the chimneys of factories
  2. use of chlorofluorocarbon in foam packaging
  3. decomposition of organic compounds by anaerobic bacteria
  4. treatment of acidic wastes with alkalis

MCQ 78: An inversion of smoke escape occurs if:

  1. layer of warm air continually replaces the cold air
  2. layer of warm air acts like a lid and does not allow the cold air and smoke to escape
  3. hot air and smoke react to form smog
  4. cold air acts as a lid and prevents escape of smoke and sulphur dioxide

MCQ 79: Compounds which tend to accumulate in bodies are:

  1. passed on to final consumers
  2. are not excreted from the bodies
  3. may contain lead and mercury
  4. all of above

MCQ 80: Risks of skin cancer is increased if:

  1. more sun bathing is done
  2. the chlorofluorocarbons are lowered
  3. the greenhouse effect is lowered
  4. more ultraviolet light penetrates the Earth

Free Effects of Human Activity on Ecosystem Educational App – Download from App Store & Play Store

The App: Effects of Human Activity on Ecosystem Notes App to study Effects of Human Activity on Ecosystem Notes, O Level Biology Notes App, and Molecular Biology Notes App for biology tutorial sessions.

The "O Level Biology Learning" App: Free Effects of Human Activity on Ecosystem Notes App Download (iOS & Android) to advance virtual studies. Download App Store & Play Store Study Apps with all functionalities for biology distance tutorials.

Free Effects of Human Activity on Ecosystem Notes App – Download Android & iOS Apps

Effects of Human Activity on Ecosystem Notes App

Free O Level Biology Notes App – Download iOS & Android Apps

O Level Biology Notes App

Free Molecular Biology Notes App – Download iOS & Android Apps

Molecular Biology Notes App

Free Cell Biology Notes App – Download Android & iOS Apps

Cell Biology Notes App