Which of the following lists the rocks in the order of increasing grain size and increasing grade of metamorphism?
A)schist, slate, phyllite
B)phyllite, slate, schist
C)slate, phyllite, schist
D)slate, schist, phyllite

Question

Quizplus · Accepted Answer

This is the correct order because it starts with slate, which has the smallest grain size and lowest grade of metamorphism, followed by phyllite, which has slightly larger grain size and slightly higher grade of metamorphism, and ends with schist, which has the largest grain size and highest grade of metamorphism.

Which of the Following Lists the Rocks in the Order