Which Is Not a Factor That Leads Geologists to Expect

question 55

Multiple Choice

Which is not a factor that leads geologists to expect that convection in the mantle is likely?

• A) Viscosity in the lithosphere is high.
• B) Viscosity beneath the lithosphere is lower because the rock is close to its melting temperature.
• C) Some of the lithosphere is denser than the asthenosphere.
• D) The thickness and mass of the mantle are huge.

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