Author Question: Why are large areas of North America covered with immature soils characterized by weakly developed ... (Read 102 times)

Collmarie

  • Hero Member
  • *****
  • Posts: 569
Why are large areas of North America covered with immature soils characterized by weakly developed horizons?
 
  What will be an ideal response?

Question 2

How can calcium-rich B horizons form in soils on top of calcium-poor rock in hot and arid regions?
 
  What will be an ideal response?



ambernicolefink

  • Sr. Member
  • ****
  • Posts: 359
Answer to Question 1

The immature soils with weakly developed horizons occur where the landscape is unstable and erosion removes any regolith before it chemically weathers into soil. These soils are most obvious in mountainous areas where erosion rates are high and along large-river floodplains where deposition rates are high. Immature soils also occur on areas that continually get fresh deposits of sediment or volcanic material (lava or ash).

Answer to Question 2

The calcium is delivered by the wind as dust particles and in rainfall.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

For a complete list of videos, visit our video library