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 Weathering 40 Flashcards |
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What are external forces acting on Earth's surface called? |
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 Exogenic forces |
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Fill in the blank: ______ is the gradual breakdown and disintegration of rocks on Earth's surface. |
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 Weathering |
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True or False: Weathering leads to the immediate removal of rocks from their original location. |
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 False. Weathering breaks down rocks without removing them from their original location. |
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Which type of weathering involves changes in rock minerals due to reactions with water and organic acids? |
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 Chemical weathering |
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Riddle: I break rocks into smaller pieces without changing their chemical composition. What am I? |
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 Mechanical weathering |
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What is degradation in the context of gradation? |
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 Wearing away or lowering of land surfaces due to erosion |
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Fill in the blank: In dry climates, ______ weathering dominates due to significant temperature fluctuations. |
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 Mechanical |
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True or False: Aggradation refers to the wearing away of land surfaces. |
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 False. Aggradation refers to the elevation of landforms due to deposition. |
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What are the main agents of weathering? |
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 Temperature, humidity, and precipitation |
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Which type of mechanical weathering involves rocks breaking apart due to temperature changes? |
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 Block disintegration |
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Fill in the blank: ______ is a type of chemical weathering where minerals dissolve in water. |
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 Solution |
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True or False: Biological weathering is solely caused by temperature changes. |
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 False. Biological weathering is caused by animals, plants, and humans. |
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What is solifluction? |
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 The movement of water-saturated soil down slopes as a viscous liquid |
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Riddle: I move slowly but surely, reshaping hills over time. What am I? |
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 Soil creep |
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What type of mass wasting is characterized by the rapid movement of rock surfaces down slopes? |
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 Landslides |
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Fill in the blank: In equatorial regions, heavy rainfall causes ______ weathering, dissolving minerals in rocks. |
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 Chemical |
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True or False: Frost action is the primary weathering process in polar regions. |
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 True |
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What process describes the movement of fine-grained, water-saturated materials down slopes? |
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 Earth flow |
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What landform can result from a landslide blocking a river? |
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 A lake |
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What type of weathering involves the physical disintegration of rocks without chemical changes? A) Chemical Weathering B) Biological Weathering C) Mechanical Weathering D) Erosional Weathering |
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 C) Mechanical Weathering |
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