The main idea of seafloor spreading is that A) lithosphere ...

[cabate]

The main idea of seafloor spreading is that
 
  A) lithosphere floats on the asthenosphere.
  B) new crust forms at a spreading center and old crust is recycled at a subduction zone.
  C) new crust is magnetized according to the existing magnetic field.
  D) the seafloor never stops growing.

Question 2

What kind of plate boundary separates the South American Plate from the African Plate?
 
  What will be an ideal response?

[duy1981999]

Answer to Question 1

Answer: B

Answer to Question 2

Answer: A divergent boundary. The Mid-Atlantic Ridge, a spreading center in the Atlantic Ocean, separates the two continents.

[cabate]

Both answers were spot on, thank you once again

[duy1981999]

Great! Please up vote