It is diffused from the air, in the atmosphere, and from plant life in the ocean.
no the oxygen from the ocean comes from two things algae and plants create oxygen through photosynthisis and water is made mostly of oxygen and a bit of hydrogen
You can if you have a Boat and enough oxygen. Do not go to far down or when you try to come up you'll have no oxygen.
Fire requires oxygen. There is no free oxygen in the ocean. Therefore there can be no fire at the bottom of the ocean.
2.2 Billion years ago Photosynthetic bacteria in the ocean began churning out oxygen as a result of photosynthesis. Then, oxygen gas started accumulating in the atmosphere.
If you mean how does it come to be in the atmosphere, oxygen is released into the atmosphere by plants, mostly by phytoplankton in the ocean. I you mean how is oxygen created in the first place, it is the result of lighter elements being fused together in the cores of stars.
Hydrogen and oxygen
Yes. Oxygen is a component of water.
All of it
The ocean animals need oxygen to survive.
plants "breathe" carbon dioxide which is what animals exhale. the plant life in the ocean provides oxygen for the marine life.
Primarily lichen, and oxygen released from the ocean
45 percent of the earths oxygen is produced by our oceans