# Secondary air pollution is _____ ? with Answer - Agriculture Mcqs | TestPrep

> Solved MCQ: Secondary air pollution is _____ ? Correct Answer: D. All the above. Verified answer explanation for FPSC, PPSC, MDCAT, NTS, and CSS competitive exam preparation.

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# Secondary air pollution is _____ ?

Direct Answer & Quick Reference

The correct option is **D. All the above**.

A. HNO3

B. CO3

C. CO2

D. All the above **(Correct Answer)**

✨ Explain with AI

Verified Key: D. All the above
Solved by 4,368+ students

Verified against official examination board answer keys and standard curriculum textbooks.

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