Subject
Water-supply
Land use
2
Energy conservation
1
Medicine Research
1
Mines and mineral resources
1
Mining engineering
1
Natural resources
1
Power (Mechanics)
1
Power resources
1
Quality of life
1
Technology Social aspects
1
Urban ecology (Sociology)
1
Water Purification Disinfection
1
Water quality
1
Water resources development
1
Water use
1
Water-supply Law and legislation
1
Wildlife research
1