This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Describe the typical formation and characteristics of a continental shield. What will be an ideal ... (Read 75 times)

anjilletteb

  • Hero Member
  • *****
  • Posts: 569
on: Jul 14, 2018
Describe the typical formation and characteristics of a continental shield.
 
  What will be an ideal response?

Question 2

According to MacArthur and Wilson's theory of island biogeography, which of the following is correct?
 
  A) The number of species decreases with island area.
  B) The number of species increases with island area.
  C) There is no relationship between species number and island area.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Ashley I

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 14, 2018
Answer to Question 1

The nucleus of a continent is called a craton and consists of ancient crystalline rock from which the continent grows. A continental shield is a large region where a craton is exposed at the surface. The formation of continental crust take hundreds of millions of years. It involves a sequence of seafloor spreading, leading to the formation of oceanic crust, subduction of this crust, and the remelting of it as new magma. Figure 13.5 illustrates the process.

Answer to Question 2

B


anjilletteb

  • Member
  • Posts: 569
Reply 2 on: Jul 14, 2018
Wow, this really help

blakcmamba

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Excellent

« previous next »
 

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?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

A typical 3 ton (6,000 lb) capacity hydraulic jack. A typical 3 ton (6,000 lb) capacity hydraulic jack.
A typical electric cooling fan assembly showing the radiator and related components. A typical electric cooling fan assembly showing the radiator and related components.
A typical oil pump mounted in the front cover of the engine that is driven by the crankshaft. A typical oil pump mounted in the front cover of the engine that is driven by the crankshaft.
Describe how fat is digested, absorbed, and transported in the body Describe how fat is digested, absorbed, and transported in the body
Renal Physiology - Urine Formation Renal Physiology - Urine Formation
Common Characteristics of the Inheritance of Autosomal Recessive Traits Seen in Pedigrees Common Characteristics of the Inheritance of Autosomal Recessive Traits Seen in Pedigrees
Video: Interpreting a cladogram Animation

For a complete list of videos, visit our video library