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Other quiz:

Pollution › View

Sunlight reacts with waste gases from the burning of fossil fuels to form

A. greenhouse gases

B. chlorofluorocarbons (CFCs)

C. photochemical smog

D. rain

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Toxicology › View

What is the time that it takes for half of the chemical or toxin to be expelled from the body?

A. expulsion rate

B. metabolic time

C. half life

D. digestive period

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