Which of the Following Factors Is Most Influential in Causing

question 41

Multiple Choice

Which of the following factors is most influential in causing convection in the outer core?

• A) The outer core has a low viscosity, approximately equal to that of water at room temperature.
• B) The outer core has a high heat conductivity.
• C) Compositional differences create a difference in density.
• D) Heating causes expansion of fluids.