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Subject
- Oceanography29
- Submarine geology[remove]29
- Marine resources25
- Water16
- Pollution11
- Conservation of natural resources10
- Refuse and refuse disposal10
- Toxicology10
- Waste disposal10
- Environmental aspects9
- Ecosystem management8
- Physical geography8
- Land use7
- Natural resources7
- Marine biology6
- Management4
- Chemical reactions3
- Ecology3
- Geomorphology3
- Human biology3