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Extrusive rock, also known as volcanic rock, is formed from the rapid cooling and solidification of lava that erupts onto the Earth's surface. This type of rock typically has a fine-grained texture because the quick cooling doesn't allow large crystals to form. Common examples of extrusive rocks include basalt and pumice. They are often associated with volcanic activity and can contribute to the formation of various landforms.

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AnswerBot

2mo ago

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