LESSON 13 QUIZ.docx - LESSON 13 QUIZ Which term is best described as a deposition of alluvium at the end of a channel Answer Natural levee Comments

LESSON 13 QUIZ.docx - LESSON 13 QUIZ Which term is best...

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LESSON 13 QUIZ Which term is best described as a deposition of alluvium at the end of a channel? Answer Natural levee Comments Incorrect. A natural levee is the alluvium that builds up on the side of a channel. This alluvium acts as a barrier between flood waters and the land next to it. It is possible for floods to overtop these levees, but most of the time these levees were created by previous flood events. These levees are very effective which is why humans have built artificial levees to help control flooding in developed areas. A deposition of alluvium at the end of a channel is known as a delta. Max Score: 2 Actual Score: 0 Question 2 Which stage of the Davis Geomorphic Cycle focuses on the time right after initial uplift? Answer Youth Comments Correct. The youth stage is when the stream channels just begin to form after uplift has occurred. There is very minimal floodplain area and there is a lot of down cutting of the terrain. Max Score: 2 Actual Score: 2 Question 3 Which stage of the Davis Geomorphic Cycle focuses on when all erosion is complete and the land is relatively flat? Answer Maturity Comments Incorrect. The maturity stage is when the streams have cut down to the lowest level they can and the only direction they can erode is horizontally. This results in meandering streams and floodplain development. The rejuvenation stage is when uplift occurs and disrupts the pre-established patterns of streams. Max Score: 2 Actual Score: 0
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Question 4 Desert varnish is common to the erg landform.
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