Author Question: Rapid cooling of magma results in a fine-grained ____________________ texture. Slow cooling of magma ... (Read 66 times)

Cooldude101 · **on:** Jul 13, 2018

Rapid cooling of magma results in a fine-grained ___________________ _ texture. Slow cooling of magma results in a course-grained ___________________ _ texture.
Fill in the blank(s) with correct word

Question 2

By ____ years ago, much of Greenland, central Canada, and the north central United States formed one large craton.
A)1.8 million
B)2.0 billion
C)1.6 billion
D)1.6 million
E)1.8 billion