Question

Which of the following rocks will be most buoyant on the Earth's mantle?
Rock A: Density 1.4 g/cm3
Rock B: Density 5.6 g/cm3
Rock C: Density 5.1 g/cm3
Rock D: Density 2.7 g/cm3
A) Rock A
B) Rock B
C) Rock C
D) Rock D

Answer

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