Soil Formation Processes and Factors
18 Questions
3 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following is NOT one of the four main soil formation processes described in the text?

  • Losses
  • Translocation
  • Additions
  • Evaporation (correct)

What does the lowercase letter 't' in a soil horizon designation (e.g. Bt) indicate?

  • Sodium accumulation
  • Cementation or induration
  • Clay accumulation (correct)
  • Decomposition of organic material

Which of the following is NOT a master soil horizon?

  • E
  • O
  • A
  • Bt (correct)

Which of the following processes involves the movement of organic and inorganic materials across a soil profile?

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

What does the lowercase letter 'n' in a soil horizon designation (e.g. Bn) indicate?

<p>Sodium accumulation (A)</p> Signup and view all the answers

Which of the following soil formation processes involves the chemical or physical modification or destruction of soil constituents and the synthesis of new materials?

<p>Transformation (B)</p> Signup and view all the answers

What is the most important factor in soil formation according to the text?

<p>Water (B)</p> Signup and view all the answers

Which horizon in the soil profile contains unconsolidated organic material at the soil surface?

<p>Oi Horizon (A)</p> Signup and view all the answers

What is the zone in the soil profile characterized by organic material mixed with minerals?

<p>Organic (very black) (B)</p> Signup and view all the answers

Which horizon in the soil profile is highly decomposed, smooth, and amorphous residues?

<p>Oa Horizon (A)</p> Signup and view all the answers

Humid warm climate is assumed for soil formation. Which factor contributes significantly to soil formation under such conditions?

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

Which horizon is a mineral horizon formed at or near the surface where humified organic matter is associated with mineral materials?

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

What is the 'E' horizon in soil classification primarily characterized by?

<p>Loss of silicate clay, organic matter, aluminum, or iron through downward movement (B)</p> Signup and view all the answers

What process describes the removal of soil constituents in suspension?

<p>Eluviation (B)</p> Signup and view all the answers

Which horizon is characterized by the accumulation of materials from overlying horizons?

<p>B Horizon (B)</p> Signup and view all the answers

What type of horizon retains evidence of rock structure but lacks diagnostic properties?

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

In soil classification, what does 'R' horizon refer to?

<p>Continuous consolidated hard or very hard bedrock (C)</p> Signup and view all the answers

What process does illuviation describe in soil formation?

<p>Accumulation of materials from overlying horizons (B)</p> Signup and view all the answers

More Like This

Soil Formation
33 questions

Soil Formation

MarvellousIndium avatar
MarvellousIndium
Soil Formation and Horizons Quiz
50 questions
Soil Formation and Layers Overview
13 questions
Use Quizgecko on...
Browser
Browser