Leah Jones
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A review of a few of the key points from chapter 3 of the text

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Leah Jones
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Key Points Review Chapter 3

Question 1 of 7

1

Soil scientists from which country first conceived the idea that soils were natural bodies?

Select one of the following:

  • United States

  • Belgium

  • Russia

  • France

Explanation

Question 2 of 7

1

In which of the following epipedons is the organic matter typically the lowest?

Select one of the following:

  • Umbric

  • Mollic

  • Histic

  • Melanic

  • Ochric

Explanation

Question 3 of 7

1

Which soil moisture regime has the highest soil moisture levels?

Select one of the following:

  • Aquic

  • Udic

  • Ustic

  • Xeric

  • Aridic

Explanation

Question 4 of 7

1

Which of the following subsurface diagnostic horizons would you expect to find in a highly weathered soil of the humid tropics?

Select one of the following:

  • Natric

  • Spodic

  • Cambic

  • Salic

  • Oxic

Explanation

Question 5 of 7

1

Which of the following diagnostic horizons would likely NOT restrict root growth in soils?

Select one of the following:

  • petrocalcic

  • salic

  • placic

  • albic

  • fragipan

Explanation

Question 6 of 7

1

Which of the following temperature regimes would provide the warmest and least variable soil temperatures?

Select one of the following:

  • thermic

  • hyperthermic

  • isothermic

  • isohyperthermic

  • mesic

Explanation

Question 7 of 7

1

Which of the following categories of Soil Taxonomy provides the greatest specificity of soil properties?

Select one of the following:

  • Series

  • Great Group

  • Family

  • Suborder

  • Order

Explanation

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