A river carries far more than water. Sa, silt a clay tra with t current, he up b the ene of t flow, a the mom that energy drops the load begins to settle. Where a river meets a still sea or lake, the current spreads out and slows almost to nothing, so the coarsest grains drop first and the finest are carried furthest. Layer on layer, the deposits build outward into the water, and a delta grows until waves and tides carry the sediment away as fast as the river brings it.

Type only the missing letters. Each box is one letter, and the number of boxes matches the letters that are missing.