Which of the following is one way hydrogen can be used as a fuel source?

Hydrogen can indeed serve as an effective fuel source in various applications, and its use in space shuttles is a prime example. In this context, hydrogen is utilized in fuel cells and rocket propulsion systems. When burned with oxygen, hydrogen releases a significant amount of energy, which can produce thrust needed for launching spacecraft. This high energy output, combined with the fact that water is the only byproduct of hydrogen combustion, makes it a clean and efficient fuel option for space missions.

Although hydrogen does have potential in heating, electricity generation, and as a replacement for fossil fuels, its most notable and widely recognized application has been in the aerospace sector, particularly in the propulsion systems of rockets. This association with advanced technology and clean energy solutions underlines the importance of hydrogen in specialized fields.