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Pollution Sewage as Cause MCQ App Download - IGCSE O Level Biology PDF e-Book

IGCSE O Level Biology Online Tests

Pollution Causes MCQ (Multiple Choice Questions) PDF Download

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The Pollution Causes Multiple Choice Questions (MCQ Quiz) with Answers PDF (Pollution Causes MCQ PDF e-Book) download to learn IGCSE O Level Biology Tests. Study Effects of Human Activity on Ecosystem Multiple Choice Questions and Answers (MCQs), Pollution Causes quiz answers PDF to learn online certification courses. The Pollution Causes MCQ App Download: Free IGCSE O Level Biology App to learn soil erosion, conservation: renewable resources, deforestation and pollution test prep for online colleges that offer certificate programs.

The MCQ: Non-toxic, unreactive chemicals used as cooling agents in refrigerators are known as "Pollution Causes" App Download [Free] with answers: chloroflouro bicarbonates, chloroflourocarbides, chloroflourocarbonates, and chlorofluorocarbon to learn online certification courses. Practice Pollution Causes Quiz Questions, download Apple e-Book (Free Sample) for free online college classes.

Pollution Causes Questions and Answers PDF Download

MCQ: 1

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

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

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
MCQ: 3

Upon entering through stomata, the leaves get damaged and plant dies. This pollutant is

  1. carbon dioxide
  2. lead
  3. carbon monoxide
  4. sulphur dioxide
MCQ: 4

Volcanic eruptions, biological decay and forest fires releases

  1. Carbon monoxide in air
  2. carbon dioxide in air
  3. sulpher dioxide in air
  4. ammonia in air
MCQ: 5

Increased melting of ice glaciers may be a result of

  1. greenhouse effect
  2. smog formation
  3. sun getting closer to the Earth every year
  4. moon moving away causing more tidal activities

IGCSE O Level Biology Practice Tests

Pollution Causes Learning App: Free Download Android & iOS

The App: Pollution Causes MCQs App to learn Pollution Causes Notes, O Level Biology MCQ App, and 10th Grade Biology MCQ App. The "Pollution Causes" App to Free Download O Level Biology MCQs Apps (iOS & Android) for online colleges that offer certificate programs. Download App Store & Play Store study Apps with all functionalities to learn online certification courses.

Pollution Causes Apps (Android & iOS)

Pollution Causes App

O Level Biology Apps (Android & iOS)

O Level Biology App

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