Because some scientific theories are true and some are false
Answer:
okay with you if you want to
-I believe the star gives off energy-, With<span> most </span>stars<span>, like our sun, hydrogen </span>is<span> being converted into Helium, a process which gives </span>off<span> energy that heats the </span>star<span>.</span>
Answer:
A star with 15 solar masses is too big to be a main-sequence star.