$\begin{array}{1 1} (a)\; \text{Used to make carbohydrates, fats and protein, which make up the body of plant and algae} \\ (b)\; \text{Used to make calcium, minerals and proteins, which strengthen the plant's stems} \\ (c)\; \text{Used to make phosphate, minerals and proteins which makes the leave of plants strong} \\ (d)\; \text{used to make carbohydrates, fats and proteins, which help the plant breathe} \end{array}$
