minus-squareProfessorozone@lemmy.worldtoCool Guides@lemmy.ca•A time traveler's survival guide. The vertical green bars are the only times in Earth's history with enough oxygen to breathe (hypoxia) and low enough to avoid oxygen toxicity (hyperoxia).linkfedilinkEnglisharrow-up7·12 days agoThank you. This will come in handy. linkfedilink
minus-squareProfessorozone@lemmy.worldtoCanada@lemmy.ca•Shoppers Drug Mart Recruiting Volunteers to Staff Storeslinkfedilinkarrow-up7·2 months agoNice., 🙂 linkfedilink
Thank you. This will come in handy.