Social Studies, 24.05.2021 21:50 anispotts
Which major event occurred during the Precambrian time?
Landmasses were all below water.
Cyanobacteria filled the water and air with oxygen.
Trilobites became extinct.
People lived on Earth.
Answers: 1
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Which major event occurred during the Precambrian time?
Landmasses were all below water.
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