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26-27 - C - RUSD Biology in the Living Earth
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Question 9
9
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Multiple Choice
Practice Test
Question 9 • 26-27 - C - RUSD Biology in the Living Earth
What is the steepest angle a compacted sand dune can reach before sand starts slipping downward?
Answer
A
50 degrees
B
45 degrees
C
30 degrees
D
15 degrees
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