

MCQOPTIONS
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1. |
What is the correct group of gases related to green planet effect? |
A. | CH₄ , SO₂ , SO₃ |
B. | CH₃ , SO₄ , SO₂ |
C. | C . F . C . , CO , ONLY |
D. | CH₄ , CO₂ , SO₂ |
Answer» D. CH₄ , CO₂ , SO₂ | |