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ARC-Easy / Mercury_7026775 / A large number of species on Earth became extinct during a short time period…

Problem

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question

A large number of species on Earth became extinct during a short time period about 65 million years ago. Based on this pattern of extinction, which is the most likely cause?

choices

  • gradual climate change
  • continued climate stability
  • sudden global climate change
  • gradual ecosystem succession

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Source and history

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