A pollutant is any substance, chemical cycles
Correct answer: D. The natural balance of our environment
- A. The natural geo-chemical cycles
- B. The natural wildlife of a region
- C. The natural flora of a place
- D. The natural balance of our environment
Explanation
A pollutant is a substance that disrupts the natural balance or normal functioning of the environment. The other options refer only to particular environmental components, not the general definition.
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