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Igneous rock helps start lava flow and lava sheets
Magma is a mixture of molten and solids that are found beneath the surface of the Earth.
Metamorphic rock is subjected to very high heat and pressure.
Sedimentary rocks are types of rock that are formed by the deposition of material at the Earth's surface and within bodies of water.
Sediment is a naturally occurring material that is broken down by processes of weathering and erosion.
Erosion happens when rocks and sediments are picked up and moved to another place by ice, water, wind or gravity.
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