A process that breaks up all types of rock into smaller pieces,
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Question 14
14.
The innermost part of the earth
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Question 15
15.
The zone of the earth above the core but below the crust.
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The type of rock formed when liquid rock cools and freezes.
Note this has cooled slowly below the earth so the crystals have had time to grow so the interlocking crystals are larger than those found in volcanic rocks that crystallise quickly on the earth's surface.