Environmental Science
What is Carcinogen?

Drugs for curing infectious disease
Food colourants
Cancer causing agent
Drugs used for curing cancer

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Environmental Science
What is the cause of the Exxon Valdez?

a plane which crashed and caused death of human life
none of these.
a ship which wrecked on the coast of India
Oil Tanker which sank in 1989 along the coast of Alaska and marine life seriously affected.

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