[Sofa King]

I always found it hard to belive that forests in one part of the world were supplying oxygen for the rest of the planet.

[snarks_when_bored]

I always found it hard to belive that forests in one part of the world were supplying oxygen for the rest of the planet.

Gasses diffuse.

[Coleus]

From what I understand, most of the oxygen generated for us to breathe comes from the plankton in the seas and not from forests and trees.