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Mathematics, 02.09.2020 21:01 naeaamm6981

Which of these happened in Precambrian time? A. The first mammals appeared.
B. Life began to evolve on Earth.
C. A mass extinction wiped out most dinosaurs.
D. Life on Earth began to move from water to land

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Which of these happened in Precambrian time? A. The first mammals appeared.
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