Computer · Environmental Engineering
निम्नलिखित में से कौन-सा प्राथमिक वायु प्रदूषक (primary air pollutant) है?
- 1H2SO4
- 2पेरॉक्सीएसिटाइल नाइट्रेट (PAN)
- 3सल्फर के ऑक्साइड✓
- 4O3
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सल्फर के ऑक्साइड
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