Noxious second: Which option correctly describes a noxious substance?

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Multiple Choice

Noxious second: Which option correctly describes a noxious substance?

Explanation:
Noxious describes something that can harm living beings or damage health. A noxious substance is toxic or injurious, causing harm instead of good. That’s why “detrimental to living beings” is the best fit—it directly conveys the harmful impact. The other descriptions don’t match the idea: beneficial for health suggests a positive effect, harmless means no harm, and pleasant refers to taste or smell without implying danger.

Noxious describes something that can harm living beings or damage health. A noxious substance is toxic or injurious, causing harm instead of good. That’s why “detrimental to living beings” is the best fit—it directly conveys the harmful impact. The other descriptions don’t match the idea: beneficial for health suggests a positive effect, harmless means no harm, and pleasant refers to taste or smell without implying danger.

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