Rocks, minerals, and soil
Rocks are constantly recycled: melted rock deep underground cools and hardens into new rock, weathering and erosion break existing rock down into small pieces, and those pieces can be pressed and cemented together into new rock over time. Energy from Earth's interior and from the sun both drive this ongoing rock cycle, and minerals are the building blocks that make up every rock.
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Midterm
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This final covers a lot of topics, so it's split into 2 parts. Each part includes a question from every one of its topics.
Final, Part 1 of 2
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Final, Part 2 of 2
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