Subject
Earth (Planet) Crust
16
Earth (Planet) Mantle
16
Earth sciences
16
Geology
16
Geology, Structural
Lithosphere
16
Physical geology
16
Earth currents
4
Geodynamics
4
Natural resources
4
Geography
3
Landforms
3
Physical geography
3
Water use
3
Environmental sciences
2
Oceanography
2
Civil engineering
1
Conservation of natural resources
1
Earth (Planet) Surface
1
Earth movements
1
Economics
1
Engineering
1
Environmental engineering
1
Environmental law
1
Environmental policy
1
Environmental protection
1
Macroeconomics
1
Power resources
1
Seismology
1
Sustainable engineering
1
World history
1