Final Exam, Physical Geography
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Regolith | Surface layer rock, above bedrock
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| Mass Wasting | Downhill movement of soil, regolith & bedrock under the influence of gravity
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| Soil | Biomass plus eroded rock
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| Erosion factors | Exposure, climate, weathering, composition of rock
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| Physical weathering | Frost, Salt Crystal growth, Exfoliation, Thermal, Biological
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| Frost physical weathering | 9% H2O expansion when frozen, happens in high alt, high lat, deserts
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| Salt Crystal Growth, physical weathering | water evaporates from sandstone pores, leaving salt crystals behind, crystals grow and disintegrate rock. Arid and semiarid regions
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| Exfoliation, physical weathering | rock is exposed at surface, pressure releases, rock expands
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| Chemical Weathering | The decomp or decay of minerals in rocks by chemical reactions with water, oxygen & acids. warm, moist climates. Hydrolysis, oxidation, carbonation.
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| Colluvium | Degraded debris collected at base of slope. Dry, gravitational.
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| Angle of Repose | slope that allows rock, sand, clay, to stay in place
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| Sediment | eroded material
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| Creep | extremely slow downhill movement of soil and regolith
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| Slide | big piece breaks away at once, steep angle
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| Flow | river of debris
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| Lahar | destructive mudflow on slopes of volcano
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| Karst Landscape | landscape underlain by eroded limestone aka caves/sinkholes. limestone caverns
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| Stalactites/Stalagmites | Roof/Floor
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| New deserts | growing 20,000 sq acres per year
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| Cone of Depression | leads to sinkhole
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| Aquiclude | Solid, impermeable area overlaying and or underlying an aquifer
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| Drainage basin | watershed
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| Brackish | not very salty
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| 3 gorges dam | 1.3333 miles long, china
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| Meander | Curve
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| Oxbow lake | isolated meander
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| Arcuate delta | older more build
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| older rivers | move slowly
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| younger rivers | more velocity
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| evapotranspiration | evaporation from stomata
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| sublimation | evaporation from snow and ice
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| alluvium | collected debris (sediment) at bottom of slope brought by water
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| gully | occasional river on a flat surface
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| Rill/Rivulet | Small stream
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| Stream erosion | hydraulic, abrasion, corrosion, potholes
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| Stream load | solid matter carried by a stream in dissolved form, in suspension and as bed load
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| Basin divide | highest peak
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| Aggregation | equal amounts of h2o and sediment
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| Nick point migration | corner of waterfall erodes
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Created by:
eereilly
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