Radioactive materials can sometimes be used to determine the ...

[javeds]

Radioactive materials can sometimes be used to determine the ________.
 
  A) origin of rocks
  B) chemical composition of rocks
  C) formation method
  D) metamorphism
  E) ages of rocks

Question 2

Extending from the base of the continental rises into the deep-ocean basins are flat depositional surfaces called ________.
 
  A) continental shelves
  B) continental slopes
  C) abyssal hills
  D) tablemounts
  E) abyssal plains

[coyin]

Answer to Question 1

E

Answer to Question 2

E

[javeds]

Gracias!

[miss.ashley]

Thanks for the timely response, appreciate it