Question

question 17 of 20 :
select the best answer for the question.

1. which factor affecting metamorphic process is most likely to cause foliation in a rock?

a. time
b. pressure
c. temperature
d. presence of water
mark for review (will be highlighted on the review page)
<< previous question next question >>

Explanation:

Foliation in metamorphic rocks is the alignment of minerals due to directed pressure (differential stress), which causes minerals to flatten and align. Time affects the process over long periods but not directly foliation. Temperature causes recrystallization but not the alignment for foliation. Water aids chemical reactions but isn't the main cause of foliation. So pressure (option B) is the key factor for foliation.

Answer:

B. Pressure