Record some of the most significant changes that occurred at different times during the earth's early history in the chart below.
Precambrian Eon (4,550-553 mya)
Hadean (4,550-3,800 mya) Archaean (3,800-2,500 mya) Proterozoic (2,500-543 mya)
Geology: The Precambrian Era comprises all of geologic time prior to 600 million years ago.
Transformation:
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