Praxis 5511 Practice Question
Which of the following is true about Earth’s structure?
Correct Answer: D
Rationale: Option D accurately reflects the geothermal gradient, where temperature increases with depth due to the heat from Earth's interior.
Option A is incorrect; while the crust is solid, the mantle and inner core also contain solid components.
Option B misrepresents the origin of volcanic rock; it primarily comes from the mantle, not the core.
Option C is misleading; Earth's magnetic field does protect against some solar radiation, but it does not block all radiation from reaching the surface.
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