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Oxygen is used and CO2 is produced
Deforestation reduces the gross amount of oxygen produced by an ecosystem it reduces the amount of oxygen produced .
No
Photosynthesis
What do you mean? To test for oxygen being produced, light a splint, blow it out then put it over the object you beleve is producing oxygen and if the splint re-lights oxygen is being produced.
Most of the worlds oxygen is produced by Trees.
Contrary to popular secular belief, tree's don't actually produce the majority of the worlds oxygen, in fact, approximately 91.6% of the worlds oxygen is produced by phytoplankton blooms in the northern hemisphere of the ocean.
wheat
seaweed
To me the answer to this question is starch
plants
The Earth's grass produce 20 to 30 percent oxygen. The other 70 to 80 percent of oxygen is produced by marine plants.
a lot of oxygen! that's where most of it comes from!
It is produced by photosynthesis in plants.
No , most of Protozoa are not photosynthetic hence can't produce O2 .
there would be no shade, nothing holding the top soil down and blocking the wind, creating a desert, and oxygen levels would go down. not dissapear, because most of the worlds oxygen is produced by algae in the oceans, not by trees
By plants and planktonMost of the Earth's oxygen is produced by plants, both on surface and under water. Algae.