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Author Question: The Cretaceous extinction event was uniformly disastrous to all marine and nonmarine organisms. ... (Read 105 times)

s.tung

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on: Jul 13, 2018
The Cretaceous extinction event was uniformly disastrous to all marine and nonmarine organisms.
  Indicate whether the statement is true or false

Question 2

Briefly explain why sand is moved by wind before clay and silt during wind erosion.


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vkodali

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Reply #1 on: Jul 13, 2018
Answer to Question 1

False

Answer to Question 2

Sand grains protrude above the surface and are more easily caught by the wind, while clay and silt grains lie closer to the surface where there is a stationary layer of air, unless this is disturbed.


s.tung

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Reply 2 on: Jul 13, 2018
Thanks for the timely response, appreciate it

matt95

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Reply 3 on: Yesterday
:D TYSM

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