7. 8.
9.
Rocks from which source would most likely contain the highest percentage of silicate minerals?
A. the ocean basin
B. a volcanic island
C. a mountain in the middle of a continent
D. a mid-ocean ridge

Iwould say d. eye contact and body language because you aren’t using any spoken communication. hope this : )

Answersource rock;

Ba rock that formed 1,400 million years ago!

Ithink the answer is ,temperature,pressure, and chemical changethey are identified by texture,streak,and locationthere are three ways that metamorphic rocks can form contact, regional,and dynamic metamorphism good luck, all this came right outta of the book