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There was no free oxygen when the earth began and when life began on the earth. Eventually single organisms developed in the oceans that released oxygen as part of their metabolic activity. After millions of years, enough free oxygen was present in the oceans and in the atmosphere to support the development of life that depended on oxygen.
If there had never been any oxygen at all in the universe, the development of the planet earth would have been very different, since there would have been no oxygen to combine with hydrogen to form water, and life as we know it would never had developed.
What else can I help you with?
Where did oxygen first come from?
Oxygen is a naturally occurring element. Made at the beginning of universe.
When you mix oxygen and water what will happen?
Some of the oxygen will dissolve in the water.
Where does oxygen gas production will happen within me?
Nowhere, animals do not produce oxygen.
What do you think will happen to animals and humans if the amount of oxygen in the air is reduced?
What do you think will happen to animals and humans if the amount of oxygen in the air is reduced?
Does conflict happen the the beginning middle or the end?
middle
The oxygen exchanges happen where?
Alveoli of lungs.
What would happen if forests disappeared?
if the oxygen
What would happen if you did not have any oxygen?
If you did not have any oxygen you would die very soon.
What happen at the beginning of the west side story?
In the beginning of West Side story, the story begins. LOL.
Did the battle of Hastings happen at the beginning end or middle of the Norman invasion?
Beginning. 21 October 1066
What words can be used at the beginning of a scientific question?
how does this happen in earth
What would happen if there is no oxygen in earth?
we would be dead
