Question

Which of the following is given as an example of a contaminant?

• A. A. Oxygen
• B. B. Carbon dioxide
• C. C. Lead
• D. D. Nitrogen

Answer 1

Answer:

C. C. Lead

• 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