Question

what is rock.
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Answer 1

A rock is a solid mass of geological materials. Geological materials include individual mineral crystals, inorganic non-mineral solids like glass, pieces broken from other rocks, and even fossils. ... Igneous rocks form when melted rock cools and solidifies.

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Answer 2

Answer:

A rock is a solid collection of mineral grains that grow or become cemented together. Some rocks are large while others are small. Small rocks are called pebbles. Every rock is made up of one or more minerals. Geologists (people who study rocks and minerals) classify rocks according to the way they are formed.

Explanation:

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