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Author Question: Which event is thought to have been a cause for past mass extinctions? a. A massive earthquake b. ... (Read 50 times)

Coya19@aol.com

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on: Aug 22, 2018

Which event is thought to have been a cause for past mass extinctions?
  a. A massive earthquake
  b. A massive tsunami
  c. An epidemic
  d. The collision with an asteroid or comet
  e. The most prolonged ice age



Question 2

Which zone in the ocean contains enough light for photosynthesis?
  a. aphotic zone
  b. hadal zone
  c. disphotic zone
  d. abyssal zone
  e. euphotic zone



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14vl19

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Reply #1 on: Aug 22, 2018
Answer to Question 1

d

Answer to Question 2

e


Coya19@aol.com

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Reply #2 on: Aug 22, 2018
Thanks


14vl19

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Reply #3 on: Aug 22, 2018
Welcome :)


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