Answer to Question 1
Answer: A
Answer to Question 2
Answer: Intrusive igneous rocks form below Earth's surface. Common intrusive rock formations are called plutons and include sills, dikes, batholiths, and laccoliths. Intrusive rocks are often referred to as plutonic rocks. Extrusive igneous rocks form at or very near Earth's surface. Common extrusive rock formations include volcanoes and fissure eruptions. Extrusive igneous rocks are often referred to as volcanic rocks.