Continents are the product of mountain building at ancient ...

[809779]

Continents are the product of mountain building at ancient ________ boundaries.
 
  A) transform
  B) divergent
  C) convergent
  D) decorticate

Question 2

Read carefully through the paragraph below, and decide which of the options is correct. The principle of isostasy explains variations in surface elevations in terms of the type and thickness of underlying crust.
 
  Low-density crust floats on denser, underlying mantle so that the temperature is everywhere the same at the base of any thick vertical column through the crust and upper mantle.
  A) The word  isostasy should be replaced by superposition.
  B) The word  elevations  should be replaced by pressures.
  C) The word temperature should be replaced by  pressure .
  D) The words  underlying crust  should be replaced by  underlying mantle.

[shailee]

Answer to Question 1

Answer: C

Answer to Question 2

Answer: C