Log in | Sign up

Subreddits
nosleep
HFY
AskHistorians

Lists
Posts read
Favorite posts
My lists
Favorite lists

Account
Log in
Sign up

Subreddits
nosleep
HFY
AskHistorians

Lists
Posts read
Favorite posts
My lists
Favorite lists

Does most atmospheric oxygen come from plants or bacteria?

by /u/neuropean in /r/askscience

Upvotes: 44

Favorite this post:

Mark as read:

Your rating:

Add this post to a custom list

StoryNote©

About Contact Terms Privacy Cookie

Reddit is a registered trademark of Reddit, Inc. Use of this trademark on our website does not imply any affiliation with or endorsement by Reddit, Inc.