#author("2022-11-19T14:04:07+09:00","","") Rapid fluctuations in oxygen levels coincided with Earth's first mass extinction - Science Daily Rapid changes in marine oxygen levels may have played a significant role in driving Earth's first mass extinction, according to a new study. Author : #technology #tech #innovation #engineering #business #iphone #technews #science #design #apple #gadgets #electronics #android #programming #software #smartphone #samsung #instagood #coding #computer #pro #instatech #education #security #gadget #mobile #instagram #technologynews #HATINC READ MORE : https://hatinco.com/221118160303.htm