Self-certification. Employers can also ask employees to fill in a form when they return to work to confirm theyâve been off sick for up to 7 days. This is called âself-certificationâ. Employers usually provide their own version of this form.elf-certification. Employers can also ask employees to fill in a form when they return to work to confirm theyâve been off sick for up to 7 days. This is called âself-certificationâ. Employers usually provide their own version of this form.
Â· just now. 1  The most massive stars (OB stars) have the shortest life. K and M stars are the least massive and have the longest lives. 2  McGarnigle is the most correct here. Type O and B are the hottest, most massive stars and, by virtue of their extreme mass, are the shortest lived.
User: Which type of stars is very hot but gives off little light? dwarfs giants main sequence stars nebula Weegy: DWARFS a type of stars is very hot but gives off little light. Expert answered|nitin2015|Points 344| User: A main sequence star becomes a ____ after it uses up the hydrogen in its core. a. nebula c. black hole b. supernova d. giant Weegy: A main sequence star becomes a GIANT after it uses up the hydrogen in its core.