Consider the model of the oxygen cycle on Earth. The majority of Earth's oxygen reservoirs are found in the

Biology

2 answers:

worty [1.4K]3 years ago

5 0

Answer:

The major oxygen reserves present on earth are:

Atmosphere: Around 21 percent of the oxygen by volume is present as free oxygen. Other oxygen-containing molecules include ozone, water vapors, carbon dioxide, oxides of sulfur and nitrogen.
Biosphere: Around 22 percent of the oxygen by volume is present as the composition of organic matter and water molecules.
Hydrosphere: Around 33 percent of the oxygen by volume is present in the hydrosphere. It is present in the form of dissolved oxygen, components of water molecules and carbonic acids.
Lithosphere: Around 47 percent of the oxygen by volume is present as oxide minerals such as silica minerals et cetera.

Kisachek [45]3 years ago

3 0

Atmosphere
biosphere
hydrosphere
the main oxygen cycle is photosenthisis

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