Variety Ib supernovae are the greater common and result from Wolf–Rayet stars of sort WC which nonetheless have helium inside their atmospheres. [201] The bulk of the material ejected by Variety II supernovae is hydrogen and helium.[202] The hefty things are produced by: nuclear fusion for nuclei as many as https://hectormskqg.ampblogs.com/rumored-buzz-on-hbr-case-study-help-72505594