Multiple choice

Pollution is�

  1. Always an unfavorable alteration

  2. Always a favorable alteration

  3. Rarely a favourable alteration

  4. Usually an unfavourable change
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pollution is defined as any undesirable change in the physical, chemical, or biological characteristics of air, water, or soil that harms living organisms. It's fundamentally an unfavorable alteration of the environment.

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