Asked by shekinah_011,

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    Padmaja Gungun

    49 weeks ago

    A rock is any solid or aggregate of minerals or mineral matter which occurs naturally. It is categorized by the included minerals, their chemical composition and the way in which they are formed. Rocks are usually divided into three main groups: igneous rocks, metamorphic rocks and sedimentary rocks.


    101 weeks ago

    The three main types, or classes, of rock are sedimentary, metamorphic, and igneous and the differences among them have to do with how they are formed. Sedimentary rocks are formed from particles of sand, shells, pebbles, and other fragments of material.

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