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How can the writer best improve his or her organization? Bedrock is extremely hard rock buried beneath the soil or gravel found at the Earth's surface. It is also buried under the sand of the ocean floor. Outcrops are bedrock deposits that appear at the surface of the Earth. Bedrock can stretch hundreds of feet below the Earth's surface, forming the upper part of the Earth's crust. It can be made up of three different kinds of rock: igneous, sedimentary, and metamorphic. Outcrops can be the result of erosion or drilling and can be seen on mountains or plateaus, along rocky coasts, and in stone quarries.

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Final answer:

The three basic types of rocks are igneous, sedimentary, and metamorphic.

Step-by-step explanation:

Rocks can be classified into three types: igneous, sedimentary, and metamorphic. Igneous rocks are formed when molten liquid of the Earth's core cools and solidifies, examples include basalt and granite.

Sedimentary rocks are formed by the deposition and cementation of rock fragments or the shells of living organisms, examples include sandstone and shale.

Metamorphic rocks are formed when high temperature or pressure alters pre-existing igneous or sedimentary rocks, examples include marble and slate.

User Ravi Makvana
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