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Pressure and radioactivity.
Radioactive decay!
Radioactive decay!
Radioactive decay!
In general, the temperature decreases towards the surface.
Movement of mantle and crust
In general, the temperature decreases towards the surface.
both temperature and pressure increase
Both temperature and pressure increase.
The closer the layer is at the Earth's core, the warmer it gets.
the thickness of the crust
The temperature increases. The average geothermal gradient is 25C/Km