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Science Bowl Question

📅 NSB Regional 2016🎓 HS🔄 Round 6#️⃣ Question 19🌟 BONUS📝 Multiple Choice

Which of the following best describes the composition of Earth's core?

W) 78% silicon oxide
X) Mainly iron silicates
Y) An iron-nickel alloy
Z) Mainly iron and potassium compounds
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