Question

Which rock has the highest metaphoric grade?

A) rock formed at 500*C and 8 Kilobars if pressure
B)rock formed at 1,200*C and 20 Kilobars of pressure
C)rock formed at 400*C and 12 Kilobars of pressure
D)rock formed at 700*C and 10 Kilobars of pressure

Answer 1

C

Step-by-step explanation:

The most common temperature is 150 -200 *C 400 is the closest