Question

Igneous rock is formed by the cooling and solidification of molten Earth materials. Igneous rock forms when magma or lava cools. If igneous rock forms above ground after a volcanic eruption, it ________________ forming ____________ igneous rock, such as obsidian which is a naturally occurring volcanic glass.
A) cools quickly, extrusive
B) cools quickly, intrusive
C) cools slowly, extrusive
D) cools slowly, intrusive

Answer 1

Well, what do you know for sure it isnt? you can eliminate a few things right away

Answer 2

c

Answer 3

anything else?

Answer 4

So we know that it doesnt cool slowly now

Answer 5

yes

Answer 6

so it cools quickly, do u know if it extrusive?

Answer 7

not really

Answer 8

extrusive is above the surface

Answer 9

ok