understand main ideas\n1. mainidea predict the appearance of an igneous rock that formed as magma cooled…
understand main ideas\n1. mainidea predict the appearance of an igneous rock that formed as magma cooled quickly and then more slowly.
Answer
Explanation:
Step1: Recall igneous - rock formation
Rapid cooling forms small crystals, slow cooling forms large crystals.
Step2: Analyze two - stage cooling
First, quick cooling creates fine - grained outer part. Then, slow cooling grows larger crystals in the interior.
Answer:
The igneous rock will have a fine - grained outer layer and a coarser - grained interior with larger crystals.