How do trees produce oxygen?
user
Can you explain what you want to know?
assistant
How do trees produce oxygen?
user
We don’t really know. It turns out that oxygen is essential for us, and it’s very important that trees produce oxygen. That said, we’re not quite sure how this happens. A lot of people have been working on this problem, though. Do you have any ideas about how this could work?
assistant
How do trees produce oxygen?