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3 July, 13:31

How are igneous rocks formed? View Available Hint (s) How are igneous rocks formed? Igneous rocks are produced by the weathering and transport of pre-existing rocks. Igneous rocks are formed by the cooling and crystallization of molten rock. Igneous rocks are formed only from material ejected during a volcanic eruption. Igneous rocks are formed by the cooling of magma above Earth's surface and lava below the surface. Igneous rocks are formed by recrystallization due to intense heat and pressure.

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  1. 3 July, 17:00
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    Igneous rocks are formed by the cooling and crystallization of molten rock.

    Explanation:

    Igneous rocks are rocks that forms by the cooling and solidification of magma. Magma is a molten rock. When the molten rock reaches the earth surface, it is called a lava.

    Some igneous rocks form deep within the crust and we say they are intrusive or plutonic igneous rocks.

    Some forms on the surface of the earth crust. We call them volcanic or extrusive igneous rocks.

    Some igneous rocks forms very close to the surface and we say they are hypabyssal igneous rocks.
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