Question

Using the internet, research three rocks pf different types( igneous, sedimentary, and metamorphic) and state thier respective economic and medical significance in our present society

Answer 1

Answer:

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Explanation:

Three Types of Rock

There are three kinds of rock: igneous, sedimentary, and metamorphic.

Igneous rocks form when molten rock (magma or lava) cools and solidifies. Sedimentary rocks originate when particles settle out of water or air, or by precipitation of minerals from water. They accumulate in layers. Metamorphic rocks result when existing rocks are changed by heat, pressure, or reactive fluids, such as hot, mineral-laden water. Most rocks are made of minerals containing silicon and oxygen, the most abundant elements in the Earth’s crust.