If igneous rock forms above ground after a volcanic eruption, it , forming igneous rock, such as obsidian which is a naturally occurring volcanic rock. Question 13 options:

Cools quickly, extrusive

Cools quickly, intrusive

Cools slowly, extrusive

Cools slowly, intrusive

A-Cools quickly, extrusive

Explanation:

C and D are wrong because the rocks cool quickly, not slowly, and B is wrong because it forms an extrustive igneous rock, not an intrusive igneous rock.

Cytoplasm

Explanation:

Cytoplasm is the semi fluid gel like substance of a cell that is present within the cellular membranes and surrounds the nucleus.

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