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IGCSE O Level Biology Practice Tests

IGCSE O Level Biology Online Tests

Pollution Causes Multiple Choice Questions (MCQ) PDF Download

The e-Book Pollution Causes Multiple Choice Questions (MCQ Quiz) with answers, Pollution Causes MCQs PDF download to learn online igcse biology degree courses. Study Effects of Human Activity on Ecosystem Multiple Choice Questions and Answers (MCQs), Pollution Causes quiz answers PDF for online associates degree. The Pollution Causes MCQ App Download: Free learning app for soil erosion, conservation: renewable resources, deforestation and pollution test prep for schools that offer online bachelor degrees.

The MCQ Non-toxic, unreactive chemicals used as cooling agents in refrigerators are known as: chloroflouro bicarbonates, chloroflourocarbides, chloroflourocarbonates and chlorofluorocarbon with "Pollution Causes" App Download (Free) for online associates degree. Practice pollution causes quiz questions, download Amazon eBook (Free Sample) for colleges that offer certificate programs.

Pollution Causes MCQ Quiz PDF Download: IGCSE Biology MCQs

MCQ 1: Non-toxic, unreactive chemicals used as cooling agents in refrigerators are known as

A) chloroflouro bicarbonates
B) chloroflourocarbides
C) chloroflourocarbonates
D) chlorofluorocarbon

MCQ 2: Risks of skin cancer is increased if

A) more sun bathing is done
B) the chlorofluorocarbons are lowered
C) the greenhouse effect is lowered
D) more ultraviolet light penetrates the Earth

MCQ 3: Upon entering through stomata, the leaves get damaged and plant dies. This pollutant is

A) carbon dioxide
B) lead
C) carbon monoxide
D) sulphur dioxide

MCQ 4: Volcanic eruptions, biological decay and forest fires releases

A) Carbon monoxide in air
B) carbon dioxide in air
C) sulpher dioxide in air
D) ammonia in air

MCQ 5: Increased melting of ice glaciers may be a result of

A) greenhouse effect
B) smog formation
C) sun getting closer to the Earth every year
D) moon moving away causing more tidal activities

IGCSE O Level Biology Practice Tests

Pollution Causes Learning App & Free Study Apps

Download O Level Biology MCQs App to learn Pollution Causes MCQs, Phylum Quiz App, and A level Biology MCQ App (Android & iOS). The free "Pollution Causes" App includes complete analytics of history with interactive assessments. Download Play Store & App Store learning Apps & enjoy 100% functionality with subscriptions!

O Level Biology App (Android & iOS)

ALL-in-ONE Learning App (Android & iOS)

O Level Biology App (Android & iOS)

O Level Biology App (Android & iOS)

Phylum App (Android & iOS)

Phylum App (Android & iOS)

A level Biology App (Android & iOS)

A level Biology App (Android & iOS)