The Earth's core is made up of equal parts cobalt and iron.
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Q7: Seismic tomography uses earthquake waves and computers
Q8: The presence of an S-wave shadow zone
Q9: The composition of the upper mantle is
Q10: The rise of the surface of the
Q11: The asthenosphere may be a partially melted
Q13: Seismic waves travel faster in oceanic crust
Q14: Geologists study the composition of the Earth's
Q15: Geologists think that the asthenosphere is molten.
Q16: The average heat flow of the continents
Q17: Generally, seismic wave velocity decreases with depth.
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