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1 vote
Which of the following rocks is formed by cooling lava?

obsidian
limestone
sandstone
marble

User Shali Liu
by
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2 Answers

3 votes

Answer:

obsidian

Step-by-step explanation:

User RubioRic
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3.4k points
6 votes

Answer:

obsidian

Step-by-step explanation:

obsidian forms when lava (magma) shoots out of the volcano, and cools rapidly

User Mauro
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