IGCSE O Level Biology Practice Tests
IGCSE O Level Biology Online Tests
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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.
MCQ 1: Non-toxic, unreactive chemicals used as cooling agents in refrigerators are known as
MCQ 2: Risks of skin cancer is increased if
MCQ 3: Upon entering through stomata, the leaves get damaged and plant dies. This pollutant is
MCQ 4: Volcanic eruptions, biological decay and forest fires releases
MCQ 5: Increased melting of ice glaciers may be a result of
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