Environment & Ecology · Environment
निम्नलिखित में से कौन सा प्राथमिक प्रदूषक है?
- 1धुंध (स्मॉग)
- 2पैन (परॉक्सीएसिटाइल नाइट्रेट)
- 3ओजोन
- 4कार्बन मोनोऑक्साइड✓
सही उत्तर देखें
कार्बन मोनोऑक्साइड
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