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Subject
- Oceans48
- Agriculture46
- Farming46
- Land use46
- Urbanization46
- Environment33
- Geoscientific Information28
- Coasts26
- Imagery and Base Maps26
- Ocean bottom23
- Seismic reflection method20
- Submarine topography20
- Biology and Ecology15
- Boundaries15
- Transportation15
- Roads14
- Elevation12
- Environmental impact analysis12
- Submarine geology11
- Inland Waters10