Geology
Coal
Combustible rock.
Desertification
Rivers turn into deserts.
Landslide
Dislocation of land.
Combustible rock.
Rivers turn into deserts.
Dislocation of land.
Smoothes rocks.
Can store water.
Mountains have roots.
Seas have internal waves.
Rotating sphere.
Least dense stone on Earth.
Visible light section in oceans.
Mountains move.
Lowest point on Earth.
Natural depression or hole in the ground.
Earthquakes or tremors precede eruptions.
Global warming causes shorelines to recede.
Minerals have different colors.
Gushes hot water from deep underground.
Water can crack rocks.
Rocks sink underground.
Cracks and fault lines.
Caused by sudden displacement of land.
Causes potholes.
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