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What type of rock is created when lava cools and hardens?

User Meetarp
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Igneous rock. there are many types of this form of rock such as, granite, basalt, and pumice. these are just a few examples
User Bobsmells
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Igneous rocks are formed when lava cools down and hardens. Some examples of ingeous rocks are obsidian and basalt.
User Sharnell
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