Coal metamorphosed to medium metamorphic grade would become a(n)
A) lignite.
B) anthracite.
C) subbituminous coal.
D) bituminous coal.
Question 2
A felsic igneous rock metamorphosed to low metamorphic grade would become a(n)
A) schist.
B) amphibolite.
C) gneiss.
D) slate.