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This is generally believed to be due to the appearance of life on earth in the form of stromatolites, a type of cyanobacteria (blue-green algae). These converted carbon dioxide to oxygen by the process of photosynthesis.
Wiki User
∙ 12y ago
Wiki User
∙ 8y agoPhotosynthetic bacteria produced oxygen which first enriched the oceans and when the oceans could not soak up anymore it started to enrich the air and that is how oxygen got on earth.
Wiki User
∙ 9y agoWhen it gets cold out side and someone breathes and sees their breath they are viewing oxygen. They see it do to the particles of moisture in the air and the cold verses hot air.
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Such properties of oxygen as its appearance and freezing point are determined by?
Oxygen is a chemical element. Such properties of oxygen as its appearance and freezing point are determined by the arrangement of electrons in shells around the nucleus.
The appearance of what element on earth allowed life to flourish?
Oxygen
What is the appearance of oxygen?
Not visible as a gas Very pale blue as a liquid
What evidence can you give that granulation is caused by convection?
Convection is caused by the mottled appearance of the solar photosphere, caused by gases rising from the interior of the Sun.
The appearance of milky quartz is caused by?
trapped bubbles of gas and liquid
What factor caused appearance of oxygen?
When it gets cold out side and someone breathes and sees their breath they are viewing oxygen. They see it do to the particles of moisture in the air and the cold verses hot air.
What is an abnormal appearance of blueness caused by lack of oxygen?
It's called cyanosis
What is the appearance of the Oxygen Family?
Clear
Such properties of oxygen as its appearance and freezing point are determined by?
Oxygen is a chemical element. Such properties of oxygen as its appearance and freezing point are determined by the arrangement of electrons in shells around the nucleus.
Hemophilia is caused by a defiency of what clotting factor?
factor VIII
How is oxidation caused?
oxidation is caused with the addition of an oxygen atom
The appearance of what element on earth allowed life to flourish?
Oxygen
Which is an abiotic factor that can be found in a rain forest ecosystem?
Oxygen. Apex-OXYGEN
What is the main factor responsible for the appearance of pimples during adolescence?
Hormones
What caused the oxygen tank on apollo 13 to expload?
It was a explosion of the oxygen cylinder .
What is the appearance of oxygen?
Not visible as a gas Very pale blue as a liquid
Why the appearance and mass of sodium changes when it reacts with oxygen?
it will burn up
