Question

Igneous rock is divided into two groups, extrusive and intrusive Extrusive
igneous rocks form when magma makes its way to its surface as lava and the
cools forming rocks. Which will be the characteristics of the crystals?
A, Crystals are coarse grained.
B. Crystals are fine grained.
C. Crystals are very large.
D. Crystals are phaneritic
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Answer 1

Answer:

crystals are fine grained

Explanation:

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Answer 2

B. Crystals are fine grained.

Explanation:

Option : B. Crystals are fine grained.

When magma makes its way to its surface as lava and then cools forming rocks it is called extrusive igneous rock and it is fine grained a it quickly cools down. When lava does not come out and release its temperature inside it takes much time and the grain size be very coarse. That is called intrusive igneous rock.