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How many times in the last 500 million years has an event caused the dominant species on Earth to go extinct?
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How many times in the last 500 million years has an event caused the dominant species on Earth to go extinct?

User Mangesh Sathe
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1 Answer

4 votes

Answer:

Once

Step-by-step explanation:

I believe it was only once- the dinosaurs

User Marvelous
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