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Why is there oxygen in Earth's atmosphere?

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Anonymous

∙ 11y ago
Updated: 10/29/2022

The oxygen is the product of photosynthesis. Plants and algae use the energy of sunlight to turn water and carbon dioxide into sugar and oxygen. The plants use the sugar as food and turn some into cellulose to make cell walls. Oxygen is released into the atmosphere as a byproduct.

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Sister Little ∙

Lvl 13
∙ 2y ago
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Related Questions

How much of the earths atmosphere is made up of nitrogen and oxygen?

The earths atmosphere is made up of 78% nitrogen and 21% oxygen


What percent of earths atmosphere is oxygen?

97%


Is most of the earths atmosphere covered with oxygen?

no


The primative earths atmosphere did not contain?

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The primitave earths atmosphere did not contain?

Oxygen gas


What is the major source of oxygen for the earths atmosphere is?

Plants


What gas was not part of early earths atmosphere?

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What describes the earths atmosphere?

mostly nitrogen with 21% oxygen


Was the earths early atmosphere made up of mostly oxygen?

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What are the primary gases found in earths atmosphere?

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How much is the earth atmosphere is made up of nitrogen and oxygen?

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