Continents grow and evolve by addition of felsic and mafic crusta ...

[fbq8i]

Continents grow and evolve by addition of felsic and mafic crusta process known as:
  a. addition.
  b. accretion.
  c. concretion.
  d. convergence.
  e. conformation

Question 2

When an isolated mountain range occurs in the interior of a continent, one may infer that the range
  formed by:
  a. the collision of two continental plates.
  b. compressive forces acting on the opposing margins of a single plate.
  c. the rifting of the continent.
  d. the growth of a volcanic arc.
  e. the collision of two continental plates or the growth of a volcanic arc

[cegalasso]

Answer to Question 1

B

Answer to Question 2

A