Igneous Rocks

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Which of the following is an igneous rock?

Which is the most important in determining the size of mineral crystals in igneous rocks?

Which texture describes an igneous rock with lots of holes?

Which texture describes an igneous rock with no grains at all?

Intrusive igneous rocks can make long-lasting landforms because they tend to be

Hot lava flows out of a crack in Earth's surface and cools to form

Molten rock that reaches Earth's surface is known as

When classifying an igneous rock, scientists often determine its