Question

How would a geologist identify an igneous rock as intrusive?

Answer 1

A.
An intrusive rock has coarse grains because it cooled more slowly beneath the surface of the earth.

B.
An intrusive rock has coarse grains because it cooled more slowly on the surface of the earth.

C.
An intrusive rock has fine grains because it cooled more quickly beneath the surface of the earth.

D.
An intrusive rock has fine grains because it cooled more slowly beneath the surface of the earth.