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Author Question: Frost action is most effective ____. A)in high mountains B)where the temperature rarely drops below ... (Read 15 times)

jparksx

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Frost action is most effective ____.
 A)in high mountains
 B)where the temperature rarely drops below freezing
 C)where Earth materials are permanently frozen
 D)where temperature has little fluctuation
 E)in low canyons

Question 2

Most of the productive coal beds of Paleozoic age are found in rocks formed during the ___________________ _ period.
 Fill in the blank(s) with correct word



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fdliggud

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Answer to Question 1

A

Answer to Question 2

Pennsylvanian




jparksx

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Reply 2 on: Jul 13, 2018
Great answer, keep it coming :)


bigcheese9

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Reply 3 on: Yesterday
Wow, this really help

 

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