Author Question: The Precambrian Crust is A) metamorphic and plutonic rock. B) plutonic and sedimentary rock. ... (Read 45 times)

lracut11 · **on:** Jul 16, 2018

The Precambrian Crust is

A) metamorphic and plutonic rock.
B) plutonic and sedimentary rock.
C) sedimentary, metamorphic, and plutonic rock.
D) metamorphic and sedimentary rock.

Question 2

Which of the following statements about cratons is not true?

A) They have been tectonically stable for more than 500 million years.
B) They are usually less than a half of a kilometer above sea level.
C) They are exterior regions of continents.
D) They may be broken by faults.