How can we learn about life on
early Earth?

Answer/Explanation:

The Bible provides historical events on early earth. Another way we can learn about early earth is the different layers of earth's outer layer. The deepest part of the layer contains the oldest fossils, bones, and organisms.

the answer is: metamorphic rocks often show the presence of fossils, also a

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-lavira: )

the tricuspid valve is present between right atrium and right ventricle