Not just trees
You probably didn't know that most of the oxygen in our atmosphere
doesn't even come from trees. It comes from offshore plankton blooms.
Every spring phytoplankton (plant plankton) zoo plankton (animal
plankton, like hatched eggs) release literary tons of oxygen into the
air. That is why spring air smells a certain way, it has more oxygen
than any other season. And it also give the ocean varying shades. Darker
or lighter green and in some parts of the ocean it leaves red pathways
along the currents. That doesn't mean trees aren't important. In fact
they provide most of the fall and winter oxygen, without them and other
plants we would probably be breathing air that would be thin like it is
at the top of mountains. So take care of forests and the ocean because
without them we would only have carbon dioxide.