Question

igneous rocks are usually crystalline structure why in short answer​

Answer 1

Explanation:

The magma, which is brought to the surface through fissures or volcanic eruptions, solidifies at a faster rate. Hence such rocks are smooth, crystalline and fine-grained. Basalt is a common extrusive igneous rock and forms lava flows, lava sheets and lava plateaus.

Answer 2

Explanation:

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