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MARINE POLLUTION (3) |
ENVIRONMENTAL DEGRADATION (2) |
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AGRICULTURE (1) |
COASTAL AREAS (4) |
ECOSYSTEMS (4) |
MARINE ECOSYSTEMS (4) |
POLLUTION (4) |
MARINE ENVIRONMENT (3) |
MARINE POLLUTION (3) |
ENVIRONMENTAL DEGRADATION (2) |
MARINE RESOURCES (2) |
SEWAGE (2) |
AGRICULTURE (1) |