Why are the nucular reactions that occur in the center of the sun critical to life on earth

Nuclear reactions inside the Sun, as in all stars, do two important things: they generate energy, and they gradually change the Sun's composition because they build up increasingly heavy nuclei. The temperature inside the Sun is so high that electrons have all been stripped from their atomic nuclei.

Explanation:

there are no statements provided but here is why:

sulfur belongs to group 16 because it can be found in nature whether it is in a free or combined state.

hope this