Soil Types and Structure Quiz
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Questions and Answers

What is the size range for very coarse sand?

  • 0.10 - 0.05 mm
  • 0.25 - 0.10 mm
  • 2.00 - 1.00 mm (correct)
  • 1.00 - 0.50 mm

Which soil structure subtype is characterized by blocky shapes?

  • Columnar
  • Prismatic
  • Angular blocky (correct)
  • Granular

How are soil particles typically arranged in soil structures?

  • Randomly without any pattern
  • Only in spherical shapes
  • In layers without specific shapes
  • Into secondary particles like plates and prisms (correct)

Which of the following is NOT a subtype of soil structure classification?

<p>Cylindrical (C)</p> Signup and view all the answers

Which soil particle size falls under fine sand?

<p>0.25 - 0.10 mm (C)</p> Signup and view all the answers

Flashcards

Soil Structure

The way soil particles are arranged.

Soil Structure Subtypes

Different shapes of soil clumps (aggregates).

Angular Blocky

Soil structure type with distinctly angular blocks.

Granular Structure

Soil particles forming roughly spherical clumps.

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Crumb Structure

Soil structure with many small, crumbly aggregates.

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Study Notes

Sand Type

  • Coarse sand: 1.00 - 0.50 mm
  • Very Coarse sand: 2.00 - 1.00 mm
  • Medium sand: 0.50 - 0.25 mm
  • Fine sand: 0.25 - 0.10 mm
  • Very fine sand: 0.10 - 0.05 mm

Soil Structure

  • Soil structure is categorized based on the shape of soil particles.
  • It's classified into four types:
    • Blocky
    • Plate-like
    • Prismatic
    • Granular
  • The shape and size of soil aggregates (called peds) determine soil structure.
  • Subtypes include:
    • Sub-angular blocky
    • Angular blocky
    • Columnar
    • Prismatic
    • Granular
    • Crumb (shapeless)

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Description

Test your knowledge on the classifications of different types of sand and the structure of soil. This quiz covers sizes of sand grains and the various forms of soil aggregates that affect soil properties. Perfect for students learning about soil science and ecology.

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