asked 41.9k views
1 vote
Which of the following rocks is formed by cooling lava?

obsidian
limestone
sandstone
marble

2 Answers

3 votes

Answer:

obsidian

Step-by-step explanation:

answered
User RubioRic
by
8.6k points
6 votes

Answer:

obsidian

Step-by-step explanation:

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

answered
User Mauro
by
8.7k points
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