What is hydrogrogen in?

Hydrogen is a chemical element represented by the symbol H and atomic number 1. It is the simplest and most abundant element in the universe, primarily found in stars, including the sun, where it undergoes nuclear fusion to produce energy. On Earth, hydrogen is commonly found in compounds such as water (H2O) and organic molecules. Additionally, it is increasingly being explored as a clean energy source, particularly in fuel cells and as a potential alternative to fossil fuels.