Ocean floor subducts under continents because A) the ocean ...

[londonang]

Ocean floor subducts under continents because
 
  A) the ocean floor is made up of silica and magnesium and is more dense than continental material.
  B) the weight of the continents is so great that they push the ocean floor material downward.
  C) the ocean floor is made of silica and aluminum s and is heavier than continental material.
  D) the ocean floor has a lower density and therefore sinks more easily.

Question 2

A water budget is derived from measuring system inputs of precipitation and system outputs of evapotranspiration and runoff.
 
  Indicate whether the statement is true or false

[rekilledagain]

Answer to Question 1

A

Answer to Question 2

TRUE