Q. निम्न में से कौन एक वाहन प्रदुषण का भाग नहीं है

(A) H₂
(B) CO
(C) NO₂
(D) SO₂

✅ Correct Answer: (A) H₂

Published by Krishna Sharma ⭐ 48.52K Points at 08-Dec-2021 07:26 pm in Science

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