1. rocks show different minerals or grains that have been segregated into layers or aligned nonrandomly.
a. skarn
b. contact
c. foliated
d. regional

2. which of the following is a type of nonfoliated metamorphic rock?
a. slate
b. gneiss
c. phyllite
d. quartzite

3. what is the main factor that changes rocks during contact metamorphism?
a. heat
b. pressure
c. chemical environment

4. when shale undergoes metamorphism, it becomes
a. slate
b. schist
c. gneiss
d. quartzite

1 .the ANSWER is C

2 the answer is B

3 the answer is A

4 the answer is d

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