barb4you67
barb4you67
16.10.2020 • 
Engineering

Select the correct answer. Which rock has the highest metamorphic grade?
A.
rock formed at 500°C and 8 kilobars of 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

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