MCQOPTIONS
Saved Bookmarks
| 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 | |