O Level

Biology MCQs

O Level Biology MCQs - Subtopic

Pollution Causes MCQ with Answers

Pollution Causes Multiple Choice Questions (MCQ) to practice pollution causes quiz answers PDF, O level biology worksheets for online degrees. Solve effects of human activity on ecosystem Multiple Choice Questions and Answers (MCQs), "Pollution Causes" quiz questions and answers for online associates degree. Learn soil erosion, conservation: renewable resources, deforestation and pollution test prep for schools that offer online bachelor degrees.

"Non-toxic, unreactive chemicals used as cooling agents in refrigerators are known as" Multiple Choice Questions (MCQ) on pollution causes with choices chloroflouro bicarbonates, chloroflourocarbides, chloroflourocarbonates, and chlorofluorocarbon for online associates degree. Solve pollution causes quiz questions for merit scholarship test and certificate programs for colleges that offer certificate programs.

MCQs on Pollution Causes

1.

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

chloroflouro bicarbonates
chloroflourocarbides
chloroflourocarbonates
chlorofluorocarbon

2.

Risks of skin cancer is increased if

more sun bathing is done
the chlorofluorocarbons are lowered
the greenhouse effect is lowered
more ultraviolet light penetrates the Earth

3.

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

carbon dioxide
lead
carbon monoxide
sulphur dioxide

4.

Volcanic eruptions, biological decay and forest fires releases

Carbon monoxide in air
carbon dioxide in air
sulpher dioxide in air
ammonia in air

5.

Increased melting of ice glaciers may be a result of

greenhouse effect
smog formation
sun getting closer to the Earth every year
moon moving away causing more tidal activities