Ozone layer is depleted by _____.

Q.1 (iii) Ozone layer is depleted by _____.

A. NO

B. NO₂

C. NO₃

D. N₂O₅

Doubtly Asked 28 Oct 2026 Board exam · March 2025 hsc 12th Save WhatsApp Report

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Answer: A. NO

Answer: (a) NO

Nitric oxide (from supersonic jet exhausts) reacts with ozone: \(\mathrm{NO + O_3 \rightarrow NO_2 + O_2}\), thinning the ozone layer.

Doubtly AI · 28 Oct 2026 AI-verified · Oct 2026 Report

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