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Science
Geography
Water Systems
All Subcategories (13)
Aqueducts
Aquifers
Canal systems
Effects of Climate Change
Freshwater Distribution
Human Impact
Impacts of land changes on water flow
Maintenance and Responsibility
Measurement methods
Ocean Currents
Rivers
Surface Water Management
Water Pollution
Parent Categories (8)
Civil Engineering
Earth Science
Earth Sciences
Environment
Environmental Science
Geography
Infrastructure
Science/Ecology