Question

Contaminant is:

• A. Unwanted substance
• B. Wanted substance
• C. Contained substance
• D. Useful substance

Answer 1

The correct option is A

Unwanted substance

The contaminant is an unwanted substance
which has harmful effects on the environment.
Presence of these substances in environment
effects both living and non -living things.

$$\begin{array}{cc}\text{Contaminant}& \text{Medium}\\ \text{Smoke}& \text{Air}\\ \text{Pesticides}& \text{Water}\\ \text{Fertilizers}& \text{Soil}\end{array}$$