Subject
Earth sciences
3
Faults (Geology)
Geology
3
Continental drift
2
Earthquakes
2
Erosion
2
Mountains
2
Plate tectonics
2
Rocks
2
Accretion (Astrophysics)
1
Continental crust
1
Earth (Planet)
1
Earth (Planet) Core
1
Earth (Planet) Crust
1
Earth (Planet) Surface
1
Fossil fuels
1
Geological time
1
Geophysics
1
Glaciers
1
Groundwater
1
Loma Prieta Earthquake, Calif., 1989
1
Minerals
1
Ocean
1
Ocean bottom
1
Orogeny
1
Paleomagnetism
1
Pangaea (Supercontinent)
1
Petroleum as fuel
1
Renewable energy sources
1
Richter scale
1
Sea-floor spreading
1
Sedimentation and deposition
1
Seismology
1
Volcanoes
1