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xz_007 [3.2K]
3 years ago
6

How do the atmosphere conditions near the beginning of Precambrian time contrast with the atmosphere conditions that are present

now?
Chemistry
1 answer:
babunello [35]3 years ago
5 0
The early precambrian atmosphere consisted primarily of nitrogen and carbon dioxide with almost no oxygen. 

<span>Today, the atmosphere contains about 20% oxygen, less carbon dioxide and similar amounts of nitrogen. </span>

<span>Photosynthetic green-leaf plants and trees are largely responsible for the change, converting carbon dioxide to oxygen.</span>
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