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Author Question: Periodic freezing and thawing of the upper ground surface when the weather is cold can lead to ... (Read 60 times)

KimWrice

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on: Jul 13, 2018
Periodic freezing and thawing of the upper ground surface when the weather is cold can lead to _______.
 Fill in the blank(s) with correct word

Question 2

Carbon-12 (C12 ), carbon-13 (C13 ), and carbon-14 (C14 ) are all ___________________ _ of the ___________________ _ carbon.
 Fill in the blank(s) with correct word


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CharlieArnold

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

solifluction

Answer to Question 2

isotopes, element


KimWrice

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Reply 2 on: Jul 13, 2018
:D TYSM

amandalm

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Reply 3 on: Yesterday
Gracias!

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