How does the Continental Arc System of mountain building, in ...

[tuffie]

How does the Continental Arc System of mountain building, in which volcanic arc activity is apparent near a subduction zone, form?
 
  a) An oceanic plate collides with an oceanic plate
  b) An oceanic plate collides with a continental plate
  c) A continental plate collides with a continental plate
  d) An area of divergence or spreading occurs

Question 2

In winter, sand from some beaches disappears. Where does it go?
 
  a) The sand becomes buried in mud.
  b) The sand moves down the continental margin to the deep sea through submarine canyons.
  c) Winter wave action moves the sand offshore into bars, located just below the wave base.
  d) The sand is stuck in rivers until the winter waves subside.
  e) The sand is covered up by rocks brought in by strong winter waves.

[alvinum]

Answer to Question 1

B

Answer to Question 2

C

[tuffie]

Gracias!

[abro1885]

TYSM