EARTH AND SPACE SCIENCE
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Science Bowl Question

📅 NSB 2011🎓 MS🔄 Round 5#️⃣ Question 2🌟 BONUS📝 Multiple Choice

Which of the following pairs of rocks are formed by volcanic froth creating a vesicular texture?

W) Obsidian (read as: ohb-SI-dee-ahn) and pumice
X) Pumice and scoria
Y) Scoria and shale
Z) Feldspar and quartz
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