Questions with the keyword 'oxygen'

• why do red giant stars fuse helium into carbon and oxygen? why doesn’t it go in the order of the periodic table like by marybarry to Damien, Suzi, Tim Comments: (So far, one comment )
• Can the brain really stay alive for 6 minuets without oxygen even is the person has suffercated? x by puddleduck to Damien, Rachael, Suzi, Tim Comments: (No comments so far )