Question

1. what role does nuclear fusion play in a star? nuclear fusion produces or decreases the amount of gravity in a star to keep it stable. nuclear fusion produces energy in stars. nuclear fusion sends radio signals from stars with low mass. nuclear fusion regulates the amount of gases present in a star.

Explanation:

In stars, hydrogen atoms fuse into helium through nuclear fusion, releasing a vast amount of energy. Gravity is related to the mass of the star and not directly produced or decreased by fusion. Nuclear fusion doesn't send radio - signals and doesn't regulate the amount of gases in a star in the way described.

Answer:

Nuclear fusion produces energy in stars.