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grandymaker [24]
4 years ago
14

Discuss why scientists know so little about Precambrian Earth

Biology
1 answer:
Molodets [167]4 years ago
8 0
<span> Pre-Cambrian life was mostly soft-bodied -- there were very few if any creatures with bones, skeletons, or hard shells, so there were very few fossils left.

Besides, it was a long, long time ago -- and geological activity on the earth (volcanic action, subduction of continental plates, erosion, etc.) have wiped out a lot of what was the surface of the earth then. </span>
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