Choose the correct answer from the four options:
The mineral ion needed for the formantion of blood clot is

Explanation

A well-balanced chemical equation for photosynthesis is as follows:
`6CO_2 + 12H_2O underset("chlorophyll") overset("sunlight energy")(to) C_6H_12O_6 + 6O_2 + 6H_2O`