Question

1. magnified views of the pictures of four rocks below are shown in the circles.

which rock is metamorphic and shows evidence of foliation?
a) 1
b) 2
c) 3
d) 4

Explanation:

Metamorphic rocks often have foliation (banding). Rock 1 has "bands of coarse intergrown crystals of various sizes", which indicates foliation. Rock 2 is sedimentary (particles cemented together). Rock 3 and 4 are likely igneous (intergrown crystals without the banding - foliation characteristic).

Answer:

A. Rock 1