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Without life because when plants do photosynthesis, they produce oxygen.
Photosynthesis is the source of virtually all the free oxygen in the earth's atmosphere.
Photosynthesis is the source of virtually all the free oxygen in the earth's atmosphere.
nitrogen is the most common element in the earths atmosphere
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Photosynthesis converts carbon dioxide into oxygen. Therefore, much of the oxygen in our atmosphere is present due to photosynthesis.
photosynthesis
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Photosynthesis
photosynthesis
Photosynthesis by plants
Without life because when plants do photosynthesis, they produce oxygen.
Carbon dioxide
It was like a cow in water, and a dove giving birth...
Significant components of the Earth's atmosphere include nitrogen, oxygen, and carbon dioxide.
oxygen
oxygen