Question

1. the fusion of two deuterium nuclei requires extreme temperature and ____.

○ radioactive fuel
○ cold water
○ high pressure

Explanation:

Nuclear fusion of deuterium nuclei requires extreme temperatures to overcome electrostatic repulsion between nuclei, and high pressure is needed to bring the nuclei close enough together for the strong nuclear force to act and initiate fusion. The other options are not required for this fusion process.

Answer:

high pressure