"Nuclear Fusion" <span>produces radiant energy in stars
Hope this helps!</span>
Helium nuclei splitting to form hydrogen, and the Sun will no longer release energy will occur when all the hydrogen in the sun undergoes fusion.
<h3>What is Fusion?</h3>
This occurs when two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles.
In a situation where all the hydrogen in the sun has undergone fusion, the helium nuclei will split to form hydrogen, and the Sun will no longer release energy.
Read more about Fusion here brainly.com/question/17870368
Incompletevquestion. However, I inferred from a general perspective about perpendicular lines.
<u>Explanation:</u>
Put simply, <u>perpendicular lines</u> are lines that are at right angles (90°) to each other. Thus, we could say based on this definition that for lines lll and mmm to be perpendicular they intersect and be at right angles (90°) to each other as <u>found on the attached image.</u>