Zusammenfassung der Ressource
Frage 1
Frage
Mechanical weathering processes result in ___
Antworten
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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
Frage 2
Frage
Which of the following is NOT considered one of the five major factors influencing soil formation?
Antworten
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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
Frage 3
Frage
Glacial till is a term used to describe parent materials that __
Antworten
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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
Frage 4
Frage
In which of the following horizons has the process of illuviation most likely occurred?
Antworten
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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
Frage 5
Frage
Silicate clay accumulation is most likely in the ___
Antworten
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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
Frage 6
Frage
Secondary minerals are most prominent in the __ fraction of soils
Frage 7
Frage
The presence of rocks such as shale and sandstone indicate the existence of ___
Antworten
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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
Frage 8
Frage
The mixed angular gravel, rock, and soil found at the foot of a slope is typical of what type of parent material?
Antworten
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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
Frage 9
Frage
Alluvial fans are usually characterized by ____ soils
Antworten
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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
Frage 10
Frage
Igneous rocks are formed when molten magma cools and solidifies.
Frage 11
Frage
Sandstones are good examples of metamorphic rock.
Frage 12
Frage
Secondary minerals are recrystallized products of the chemical breakdown and/or alteration of primary minerals.
Frage 13
Frage
Chemical weathering is accelerated by water, oxygen, and organic and inorganic acids moving down and through the regolith.