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Serggg [28]
3 years ago
13

which of the following is an example of extrusive rock that has cooled too quickly for grains to form

Biology
1 answer:
Ilia_Sergeevich [38]3 years ago
7 0
The correct answer is<span> a. Volcanic glass

Volcanic glass is also known as Obsidian. It is formed when lava cools down too rapidly and crystals grow minimally, without grains.</span>
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<h3>What did Newton say held the Solar system together?</h3>

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