A detailed educational infographic of a watershed in cross-section view, showing the mountains, forest, river, reservoir, and floodplain. Clearly label key processes: "Precipitation" falling as rain on the hills, "Soil Moisture" in the ground, "Runoff" flowing into the river, "Streamflow" in the main channel, "Flood" occurring in the floodplain, and "Reservoir Management" at the dam. Use clear arrows to show the water movement from precipitation to runoff to streamflow to flood to the reservoir. Include both surface water flow and infiltration to groundwater. Style: clean, scientific, suitable for a hydrology textbook, with clear labels and simple colors. See more