Author Question: In what kind of plate boundary is material from the crust very slowly forced downward, back into the ... (Read 32 times)

ereecah

  • Hero Member
  • *****
  • Posts: 530
In what kind of plate boundary is material from the crust very slowly forced downward, back into the mantle?
 
  A) divergent
  B) convergent
  C) transform
  D) vertical

Question 2

The greater thickness of what kind of rocks causes the continents to have higher surface elevations than the oceanic crust?
 
  A) sial
  B) metamorphic
  C) igneous
  D) sima



shewald78

  • Sr. Member
  • ****
  • Posts: 340
Answer to Question 1

Answer: B

Answer to Question 2

Answer: A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

For a complete list of videos, visit our video library