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Which of these rocks forms from lava that cools very quickly? A) schist B) gneiss C) granite D) obsidian
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3 votes
Which of these rocks forms from lava that cools very quickly?

A) schist
B) gneiss
C) granite
D) obsidian

User Kumpelka
by
8.3k points

2 Answers

4 votes
D: Obsidian.

It is a type of glass that is made from lava cooling very quickly. unlike the obsidian granite cools slowly to form a light-coloured rock while the obsidian formes a black coloured glass type rock.
User Olivier Dadoun
by
9.6k points
1 vote
I am thinking the rock that forms from lava that cools quickly is D) Obsidian.
User Abdulsalam Opeyemi
by
7.7k points
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