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 Denudation 40 Flashcards |
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What is denudation? |
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Denudation refers to processes that wear down the Earth's surface, reducing elevation and smoothing landscapes. |
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Which of the following is NOT an agent of denudation? A) Wind B) Rivers C) Glaciers D) Mountains |
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 D) Mountains |
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Riddle: I carry materials like pebbles and sand, flowing from my source to my mouth. What am I? |
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 A river |
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True or False: A river basin is the area drained by a river and its tributaries. |
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 True |
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The area where a river and its tributaries collect water is called the ______. |
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 Catchment area |
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What type of erosion predominates in the upper course of a river? |
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 Vertical erosion |
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Which features are characteristic of the middle course of a river? A) V-shaped valleys B) Meanders C) Waterfalls D) Gorges |
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 B) Meanders |
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Fill in the blank: The landform created when a river deposits sediment as it enters slower-moving water is called a ______. |
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 Delta |
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True or False: Wind erosion is more effective than water erosion in all environments. |
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 False. Wind erosion's effectiveness is lower than water's except in dry and desert areas. |
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What are deflation hollows? |
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 Deflation hollows are formed when wind removes loose material from flat, dry areas. |
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What type of dune is shaped like a wide letter C? |
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 Crescentic dune |
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Riddle: I can be formed in deserts and have gentle slopes on one side and steep slopes on the other. What am I? |
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 A sand dune |
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Fill in the blank: The natural embankments formed by sediment deposition during floods are called ______. |
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 Levees |
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What is the primary function of rivers in their lower course? |
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 Deposition |
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Which of the following features is NOT found in the lower course of a river? A) Oxbow lakes B) Floodplains C) Gorges D) Deltas |
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 C) Gorges |
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True or False: Lateral erosion dominates the upper course of a river. |
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 False. Lateral erosion dominates the middle course. |
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What process involves the removal and transportation of soil by wind? |
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 Wind erosion |
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Fill in the blank: The area where a river ends, usually at a sea or ocean, is called the ______. |
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 Mouth of a river |
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What happens to rivers during flooding? |
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 They overflow their banks, depositing sediment on floodplains. |
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Which feature is formed when a meander's neck narrows and the river cuts through? |
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 Oxbow lake |
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