Question

From which sources can contaminants originate?

• A. A. Only natural sources
• B. B. Only human activities
• C. C. Natural sources, human activities, or industrial processes
• D. D. Only industrial processes

Answer 1

Answer:

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

• 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