Question

define igneous rock

Answer 1

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Ingenious rocks...also known as volcanic rocks are the rocks that are produced after the volcanic eruptions...They are formed by the cooling of molten magma on the earth's surface....These rocks include andesite, basalt, dacite, obsidian, pumice, rhyolite, scoria, and tuff. ...

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Answer 2

Answer:

Igneous rock, or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava. The magma can be derived from partial melts of existing rocks in either a planet's mantle or crust.