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What are rocks and how are they formed in nature?

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Rocks are naturally occurring solid materials composed of one or more minerals. They are formed through various geological processes over long periods of time. Some of the common ways rocks are formed in nature include:

  1. Igneous rocks: Formed when molten rock (magma) cools and solidifies either beneath the Earth's surface (intrusive) or on the surface (extrusive).

  2. Sedimentary rocks: Formed from the accumulation and compression of sediments like sand, mud, and organic material over time.

  3. Metamorphic rocks: Formed when existing rocks are subjected to high heat, pressure, or chemical processes, causing them to recrystallize and change their mineral composition.

These processes occur over millions of years and are influenced by factors like heat, pressure, erosion, and tectonic movements.

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