Viewing a single comment thread. View all comments

Taibok t1_jabk81k wrote

Reply to comment by [deleted] in ELI5: Why is it that when fertilizers make their way into waterways, all the oxygen disappears, killing the fish? by Psychological-Dog994

Photosynthesis requires oxygen?

3

Vergesso t1_jaby959 wrote

It does not, but plants on their own breathe too. They produce more oxygen that they need, but photosynthesis happens not in the same organella that breathing does, so there is some travelling oxygen has to make before it may be used in breathing.

2