« previous next »

Author Question: Why are large areas of North America covered with immature soils characterized by weakly developed ... (Read 85 times)

Collmarie

  • Hero Member
  • *****
  • Posts: 569
on: Jul 16, 2018
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
Reply #1 on: Jul 16, 2018
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

Collmarie

  • Hero Member
  • *****
  • Posts: 569
Reply #2 on: Jul 16, 2018
Correct answers!


ambernicolefink

  • Sr. Member
  • ****
  • Posts: 359
Reply #3 on: Jul 16, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Large numbers of plant species can flower at once in this grassland in Kinsella, Alberta. Large numbers of plant species can flower at once in this grassland in Kinsella, Alberta.
Linear alopecia developed in this man from daily wearing of his military uniform cap Linear alopecia developed in this man from daily wearing of his military uniform cap
Lung cancer. Photograph of part of a lung removed after death. The yellow area is a large tumor and Lung cancer. Photograph of part of a lung removed after death. The yellow area is a large tumor and
Primates use their space in a variety of ways: home ranges, core areas, and territories. Primates use their space in a variety of ways: home ranges, core areas, and territories.
The Pyramid of the Moon, looking north up the Avenue of the Dead. The Pyramid of the Moon, looking north up the Avenue of the Dead.
The large intestine. The large intestine.
Video: Methods of carbon dioxide transport - carbaminohemoglobin and bicarbonate ions

For a complete list of videos, visit our video library