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Which of the following rocks is formed by cooling lava? A.obsidian B.limestone C.sandstone D.marble
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Which of the following rocks is formed by cooling lava? A.obsidian B.limestone C.sandstone D.marble

User Daniel Pollard
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2 Answers

5 votes

Answer: Obsidian

Explanation: "Obsidian occours when felsic lava extruded from a volcano cools rapidly with minimal crystal growth." according to Wikipedia

User Matekm
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1 vote

Answer:

A

Step-by-step explanation:

User Briangonzalez
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