| Column-$I$ | Column-$II$ |
| $(A)$ Found in some amino acids | $(1)$ $Mg$ |
| $(B)$ Required for photolysis of water | $(2)$ $I$ |
| $(C)$ Not important for plants | $(3)$ $S$ |
| $(D)$ Structural component of chlorophyll | $(4)$ $Mn$ |
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