The Amazing Amazon Rainforest
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Questions and Answers

What is the approximate percentage of Earth's total plant species that are estimated to live in the Amazon rainforest?

  • 5%
  • 10% (correct)
  • 20%
  • 15%

    • Which event allowed the Amazon Rainforest to expand across new territory?

  • Mass K-Pg extinction event (correct)
  • Subsequent glacial events
  • Collision of a large asteroid with Earth
  • Eocene Era

    • What is the estimated age of the Amazon Rainforest?

  • 55 million years old (correct)
  • 40 million years old
  • 70 million years old
  • 25 million years old

    • What metal, more commonly found in asteroids, is unusually high around the K-Pg boundary, supporting the theory of the collision event?

    <p>Iridium</p> Signup and view all the answers

    Which geographic event allowed the Amazon Rainforest to survive and uniquely evolve for a very long time?

    <p>Wetter geography in the region</p> Signup and view all the answers

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