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2 votes
The rate at which magma
cools
determines the
of the crystals in the new rock.

1 Answer

2 votes

Answer:

If the magma cools quickly, the crystals do not have much time to form, so they are very small. If the magma cools slowly, then the crystals have enough time to grow and become large.

Step-by-step explanation:

User Charlie Stanard
by
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