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1 September, 13:05

What evidence suggests that a mass extinction of the dinosaurs occurred at the end of the

Cretaceous Period?

A)

an absence of dinosaur fossils in Paleocene bedrock

B)

drawings of dinosaurs made by humans in caves during the Paleocene Epoch

C)

an abundance of dinosaur fossils in Early Cretaceous bedrock

D)

evolution of dinosaurs during the Late Cretaceous Epoch

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Answers (1)
  1. 1 September, 14:39
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    C)

    an abundance of dinosaur fossils in Early Cretaceous bedrock

    Explanation:

    The key piece of evidence is an oddly high amount of the metal iridium in what's known as the Cretaceous-Paleogene, or K-Pg, layer
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