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Author Question: Which of Earth's major extinctions was the most extensive, eliminating 70 percent of all terrestrial ... (Read 37 times)

cagreen833

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on: Jul 15, 2018
Which of Earth's major extinctions was the most extensive, eliminating 70 percent of all terrestrial organisms and up to 95 percent of marine organisms?
 
  A) Cambrian Explosion
  B) Permian Extinction
  C) Cretaceous Extinction
  D) Late Devonian Extinction

Question 2

When did the first terrestrial plants appear on the land surface?
 
  A) 400 million years ago
  B) 327 million years ago
  C) 225 million years ago
  D) 65 million years ago


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Shshxj

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Reply #1 on: Jul 15, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: A


cagreen833

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Reply 2 on: Jul 15, 2018
Great answer, keep it coming :)

atrochim

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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