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Mathematics 14 Online
OpenStudy (anonymous):

i'll give you a fan. 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 Eliminate D) cools slowly, intrusive

OpenStudy (anonymous):

A

OpenStudy (anonymous):

A

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