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Author Question: Why are the deposits of streams graded with the largest boulders or pebbles at the bottom? a. The ... (Read 75 times)

K@

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on: Jul 13, 2018
Why are the deposits of streams graded with the largest boulders or pebbles at the bottom?
   a. The largest boulders are always at the bottom; they never move.
   b. The largest boulders eroded from the stream bank immediately roll to the bottom and stay there.
   c. Jostling of boulders, pebbles, and sand in turbulent water moves the boulders to the bottom.
   d. As the water slows after a flood, the largest boulders drop out first.
   e. Tributaries add additional sediment to the stream.

Question 2

What does NOT cause an area of rapids on a stream?
   a. steepening of the channel slope
   b. bedrock in the stream channel
   c. the presence of a thalweg
   d. higher than normal water in the stream bed
   e. greater channel depth and water velocity


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katheyjon

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

ANSWER: d

Answer to Question 2

ANSWER: d


K@

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Reply #2 on: Jul 13, 2018
Thank you :)


katheyjon

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Reply #3 on: Jul 13, 2018
Happy to help you


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