Ecology is the study of the interactions between living organisms, such as humans, and their physical environment; it aims to comprehend the vital links that exist between plants and animals and the environment. Ecology also informs us about ecosystem advantages and how humans might use Earth's resources in ways that preserve the environment for future generations. Conservation biology, wetland management, natural resource management (agro ecology, agriculture, forestry, agroforestry, fisheries), city planning (urban ecology), community health, economics, basic and applied science, and human social interaction are all examples of practical applications of ecology (human ecology). Ecosystems provide ecosystem services such as biomass production (food, fuel, fiber, and medicine), climate regulation, global biogeochemical cycles, water filtration, soil formation, erosion control, flood protection, and many other scientific, historical, economic, or intrinsically valuable natural features.