« previous next »

Author Question: Where is the thinnest continental crust in North America? A) Appalachian Mountains B) ... (Read 182 times)

Mollykgkg

  • Hero Member
  • *****
  • Posts: 529
on: Jul 16, 2018
Where is the thinnest continental crust in North America?
 
  A) Appalachian Mountains
  B) Mississippi River Valley
  C) Basin and Range region
  D) Colorado Plateau

Question 2

P waves moving through the base of continents move at about ________ km/sec, but once they cross the Moho, the velocity changes to ________ km/sec.
 
  A) 8; 4
  B) 2; 10
  C) 6; 8
  D) 3; 9


nothere

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

The Great Lakes— America’s “Fourth Coast” The Great Lakes— America’s “Fourth Coast”
Oceanic Crust Has a Well-defined Internal Structure Oceanic Crust Has a Well-defined Internal Structure
Weather Characteristics of North American Air Masses Weather Characteristics of North American Air Masses
Formation of Continental Crust Formation of Continental Crust
North American Indigenous Woman North American Indigenous Woman
North American temperate deciduous forest. Forest soil profile at right. North American temperate deciduous forest. Forest soil profile at right.
Video: Control of ventilation rate by other brain centers (posts, hypothalamus & cerebral cortex)

For a complete list of videos, visit our video library