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Which of the following is true about glassy igneous rocks? cooled very slowly cooled very rapidly cooled in two stages
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Which of the following is true about glassy igneous rocks?

cooled very slowly

cooled very rapidly

cooled in two stages

User Yuehan Lyu
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1 Answer

5 votes
Glassy igneous rocks (i.e. obsidian) are cooled very rapidly.
User Josef Borkovec
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