Answers to Chapter 10 End of Chapter Questions

Answers to Chapter 10 End of Chapter Questions - Answers to...

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1 Answers to Chapter 10 End of Chapter Questions 1. What factors control a stream’s velocity? Factors that control a stream’s velocity include: Stream gradient: steeper gradients promote higher stream velocities Stream channel shape: straight, deep, narrow stream channels will allow for higher velocities than meandering, shallow, wide channels Stream channel roughness: the rougher a stream channel is, the more friction it provides to stream flow – therefore, rough channels promote slower velocities whereas smooth channels promote faster velocities. Stream discharge: given the same channel, a streams velocity will increase if the discharge is increased. More details can be found on pages 251-252 in your textbook. 2. Describe how bar deposition creates a braided stream. See the discussion on page 257 for the answer to this question. 3. In what part of a large alluvial fan is the sediment the coarsest? Why? The coarsest sediment in an alluvial fan will be found in the upper part of the alluvial fan, closest to the mountains. This is
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