Leah Jones
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A review of some of the key points from chapter 2 of the text

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Leah Jones
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Key Points Review Chapter 2

Question 1 of 13

1

Mechanical weathering processes result in ___

Select one of the following:

  • the decomposition of primary materials

  • the hydrolysis of materials through frost action

  • the oxidation of iron and manganese compounds

  • the disintegration of rocks due to differential expansion of materials

Explanation

Question 2 of 13

1

Which of the following is NOT considered one of the five major factors influencing soil formation?

Select one of the following:

  • valence state

  • living organisms

  • climate

  • native parent material

  • topography

Explanation

Question 3 of 13

1

Glacial till is a term used to describe parent materials that __

Select one of the following:

  • were laid down in the bottom of former glacial lakes

  • contain a heterogeneous mixture of mineral debris dropped by receding glaciers

  • are sorted by rapidly flowing melt waters

  • were transported by water gushing from glacial fronts

  • were transported by high winds during glacial periods

Explanation

Question 4 of 13

1

In which of the following horizons has the process of illuviation most likely occurred?

Select one of the following:

  • A horizon

  • B horizon

  • C horizon

  • O horizon

  • E horizon

Explanation

Question 5 of 13

1

Silicate clay accumulation is most likely in the ___

Select one of the following:

  • A horizon

  • B horizon

  • C horizon

  • O horizon

  • E horizon

Explanation

Question 6 of 13

1

Secondary minerals are most prominent in the __ fraction of soils

Select one of the following:

  • organic

  • clay

  • sand

  • silt

Explanation

Question 7 of 13

1

The presence of rocks such as shale and sandstone indicate the existence of ___

Select one of the following:

  • highly weathered soils

  • iron-rich materials

  • a high water table

  • ancient seas

  • old mountain ranges

Explanation

Question 8 of 13

1

The mixed angular gravel, rock, and soil found at the foot of a slope is typical of what type of parent material?

Select one of the following:

  • glacial

  • lacustrine

  • eolian

  • fluvial

  • colluvial

Explanation

Question 9 of 13

1

Alluvial fans are usually characterized by ____ soils

Select one of the following:

  • poorly drained

  • nearly level

  • sandy and gravelly

  • clay textured

Explanation

Question 10 of 13

1

Igneous rocks are formed when molten magma cools and solidifies.

Select one of the following:

  • True
  • False

Explanation

Question 11 of 13

1

Sandstones are good examples of metamorphic rock.

Select one of the following:

  • True
  • False

Explanation

Question 12 of 13

1

Secondary minerals are recrystallized products of the chemical breakdown and/or alteration of primary minerals.

Select one of the following:

  • True
  • False

Explanation

Question 13 of 13

1

Chemical weathering is accelerated by water, oxygen, and organic and inorganic acids moving down and through the regolith.

Select one of the following:

  • True
  • False

Explanation

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