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Which of the following rocks is formed by cooling lava? obsidian limestone sandstone marble
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16 votes
16 votes
Which of the following rocks is formed by cooling lava?

obsidian
limestone
sandstone
marble

User Richard YS
by
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2 Answers

7 votes
7 votes

obsidian is formed by cooling the lave.

User Jacob Brunson
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7 votes
7 votes

Answer:

obsidian

Step-by-step explanation:

Obsidian is a naturally occurring volcanic glass formed when lava extruded from a volcano cools rapidly with minimal crystal growth. It is an igneous rock. Obsidian is produced from felsic lava, rich in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium.

User Alexander Yezutov
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