Odisha BSE HSC Env & Pop Ed Practice Questions - Environment And Population Education (SEP) - Odisha BSE High School Certificate (Class 10) Exam

Air pollution is best defined as:

Only the smell of flowers after rain Only cold weather with no chemicals Only empty air with zero gases The presence of substances in air in concentrations that harm humans, living organisms, materials, or the environment

Correct Answer:

The presence of substances in air in concentrations that harm humans, living organisms, materials, or the environment

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