7228451
Descripción
Test por Leah Jones, actualizado hace más de 1 año
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Creado por Leah Jones
hace alrededor de 8 años
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Pregunta 1
Pregunta
Mechanical weathering processes result in ___
Respuesta
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the decomposition of primary materials
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the hydrolysis of materials through frost action
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the oxidation of iron and manganese compounds
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the disintegration of rocks due to differential expansion of materials
Pregunta 2
Pregunta
Which of the following is NOT considered one of the five major factors influencing soil formation?
Respuesta
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valence state
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living organisms
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climate
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native parent material
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topography
Pregunta 3
Pregunta
Glacial till is a term used to describe parent materials that __
Respuesta
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were laid down in the bottom of former glacial lakes
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contain a heterogeneous mixture of mineral debris dropped by receding glaciers
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are sorted by rapidly flowing melt waters
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were transported by water gushing from glacial fronts
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were transported by high winds during glacial periods
Pregunta 4
Pregunta
In which of the following horizons has the process of illuviation most likely occurred?
Respuesta
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A horizon
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B horizon
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C horizon
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O horizon
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E horizon
Pregunta 5
Pregunta
Silicate clay accumulation is most likely in the ___
Respuesta
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A horizon
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B horizon
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C horizon
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O horizon
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E horizon
Pregunta 6
Pregunta
Secondary minerals are most prominent in the __ fraction of soils
Respuesta
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organic
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clay
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sand
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silt
Pregunta 7
Pregunta
The presence of rocks such as shale and sandstone indicate the existence of ___
Respuesta
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highly weathered soils
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iron-rich materials
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a high water table
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ancient seas
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old mountain ranges
Pregunta 8
Pregunta
The mixed angular gravel, rock, and soil found at the foot of a slope is typical of what type of parent material?
Respuesta
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glacial
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lacustrine
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eolian
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fluvial
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colluvial
Pregunta 9
Pregunta
Alluvial fans are usually characterized by ____ soils
Respuesta
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poorly drained
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nearly level
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sandy and gravelly
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clay textured
Pregunta 10
Pregunta
Igneous rocks are formed when molten magma cools and solidifies.
Respuesta
- True
- False
Pregunta 11
Pregunta
Sandstones are good examples of metamorphic rock.
Respuesta
- True
- False
Pregunta 12
Pregunta
Secondary minerals are recrystallized products of the chemical breakdown and/or alteration of primary minerals.
Respuesta
- True
- False
Pregunta 13
Pregunta
Chemical weathering is accelerated by water, oxygen, and organic and inorganic acids moving down and through the regolith.
Respuesta
- True
- False
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