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pshichka [43]
4 years ago
12

How do scientist determine when an era begins and when it ends?

Social Studies
1 answer:
Tatiana [17]4 years ago
7 0
The way that scientist determine when an era begins and when it ends is : Mass extinction of an organism
For example, millions years ago, the world was under the era of dinosaurs, which were simply the most superior beings on earth during that time, after they became extinct, the earth enter the era of the mammals
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Stan and jenny are in a psychology course that requires them to repeat an experiment that researchers have conducted in the past
charle [14.2K]
I believe this is called: <span> replication
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Scilla [17]

Answer:

B

Explanation:

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3 years ago
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Alekssandra [29.7K]
B Ukraine for it Is closer to all other countries
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Mariana [72]

The answer is

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