Which of the Following Chemicals Is NOT a Pollutant

question 63

Multiple Choice

Which of the following chemicals is NOT a pollutant?

• A)carbon monoxide (CO)
• B)oxides of nitrogen (NO _x )
• C)nitrogen (N₂)
• D)hydrocarbons (HC)

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Definitions:

Dissolves Completely

A process by which a substance breaks down and integrates into a liquid, forming a uniform solution.

Potassium Chloride

An essential mineral supplement used to treat or prevent low levels of potassium in the blood.

Ml PO

An abbreviation often used in medical contexts to indicate a medication dose taken orally in milliliters.

Oral Solution

A liquid preparation containing one or more active ingredients dissolved, intended for oral administration.