Suppose a scientific team is trying to recreate the energy-producing reactions that occur in the Sun. What would they need for the experiments?

The Sun produces energy by nuclear fusion, in which hydrogen nuclei combine to form helium. To make fusion happen in an experiment, the hydrogen must be heated to extremely high temperatures and placed under great pressure so the nuclei can overcome their repulsion and join. Thus, the correct choice is hydrogen atoms, heat, and pressure.

AI-written and checked against the verified answer.