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From which sources can contaminants originate?

AA. Only natural sources

BB. Only human activities

CC. Natural sources, human activities, or industrial processes

DD. Only industrial processes

Answer:

C. C. Natural sources, human activities, or industrial processes

Read Explanation:

  • A substance that pollutes or make something impure, unsuitable or harmful is known as - Contaminants

  • Contaminants can come from natural sources, human activities, or industrial processes

  • Eg: Lead, mercury, asbestos

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