MCQ
Which gas is produced by plants during photosynthesis?
- ACarbon dioxide
- ✓Oxygen
- CHydrogen
- DNitrogen
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| S.No. | Column-$I$ | S. No. | Column-$II$ |
| $A.$ | Formation of day and night. | $(p)$ | Chemical change. |
| $B.$ | Ripening of a mango. | $(q)$ | Physical change. |
| $C.$ | Dissolving of sugar in water. | $(r)$ | Periodic change. |
| $D.$ | Occurrence of rainbow. | $(s)$ | Non-periodic change. |