<span>1. The references are not cited. Ie. It is unclear or unknown where the information came from.
2. The information is based on studies which are not peer-reviewed. Ie. The information has not been reviewed by experts in he field, or is not supported by a consensus of experts in the field.</span>
It would be a 50% or 1/2 chance.
It’s opening a box then closing it back then open then close
Explanation:
Over its lifetime, a low mass star consumes its core hydrogen and converts it into helium. The core shrinks and heats up gradually and the star gradually becomes more luminous. Eventually nuclear fusion exhausts all the hydrogen in the star's core