Seasonal river flows and managed water supplies support farms, energy, habitats, and communities. is the correct choice. Idaho depends on snow-fed river systems for irrigation and other uses, which can compete during dry periods.

Rivers connect mountain snowpack, valleys, ecosystems, farms, and communities. Seasonal runoff helps replenish waterways, while reservoirs and diversion structures change how water is available. River management therefore involves tradeoffs among agriculture, energy, habitat, and recreation.