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Author Question: Above the permafrost layer, the _______________ layer freezes during winter but thaws during summer. ... (Read 91 times)

bclement10

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on: Aug 7, 2018
Above the permafrost layer, the _______________ layer freezes during winter but thaws during summer.
 Fill in the blank(s) with correct word

Question 2

The free fall of rock through air is called _______________.
 Fill in the blank(s) with correct word


frankwu0507

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Reply #1 on: Aug 7, 2018
Answer to Question 1

active

Answer to Question 2

rockfall


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bclement10

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Reply #2 on: Aug 7, 2018
TY


frankwu0507

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Reply #3 on: Aug 7, 2018
You're welcome


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