MCQ
Which is green house gas?
- A$\mathrm{CH}_4$
- B$\mathrm{CO}_2$
- CCFC
- ✓All of these
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$II.$ Chemical theory of origin of life was given by $....B......$
$I.$ methane
$II.$ carbon dioxide
$III.$ oxygen
$IV.$ ethane
Choose the correct option