/u/rob2508's posts

Year:

Only show posts with narrations

The oxygen level rise to 30% in the carboniferous period and is now 21%. What happened to the extra oxygen?

6646 upvotes • r/askscience

Mark as read: Add to a list

Title	Upvotes	Subreddit	Mark as read	Favorited	Rating	Add to a list
The oxygen level rise to 30% in the carboniferous period and is now 21%. What happened to the extra oxygen?	6646	askscience