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Questions and Answers
Which two sources contribute to Earth's internal heat in roughly equal amounts?
Which two sources contribute to Earth's internal heat in roughly equal amounts?
- Solar radiation and radiogenic heat
- Radiogenic heat and primordial heat (correct)
- Geothermal gradients and mantle convection
- Volcanism and plate tectonics
What drives mantle convection, plate tectonics, mountain building, rock metamorphism, and volcanism?
What drives mantle convection, plate tectonics, mountain building, rock metamorphism, and volcanism?
- Earth's internal heat (correct)
- Solar radiation
- Incoming solar radiation
- Geothermal gradients
What is theorized to sustain Earth's magnetic field?
What is theorized to sustain Earth's magnetic field?
- Mantle convection
- Plate tectonics
- Radiogenic heat
- Geodynamo (correct)
What percentage of Earth's total energy budget at the surface does Earth's interior heat contribute?
What percentage of Earth's total energy budget at the surface does Earth's interior heat contribute?
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What is the estimated flow of heat from Earth's interior to the surface?
What is the estimated flow of heat from Earth's interior to the surface?
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