Multiple Choice
Why are igneous rocks that consist of very small crystals called aphanitic?
A) Aphanitic comes from the Greek word phaneros, meaning visible.
B) Aphanitic comes from the Greek word aphaneros, meaning invisible.
C) They form deep within the earth's crust.
D) They form deep within the earth's ocean.
Correct Answer:

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Correct Answer:
Verified
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