The answer to your question is B
Almost 90% of Earth's history occurred during the Precambrian time period
Answer:
Today, more people than ever live in a country other than the one in which they were born. According to the IOM World Migration Report 2020, as of June 2019 the number of international migrants was estimated to be almost 272 million globally, 51 million more than in 2010. Nearly two thirds were labour migrants.
Explanation:
It was a bull market that crashed because stocks were overvalued and many people had purchased stocks on margin
i believe the answer is option A
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filler so non brainly+ can see