When a river flows into an ocean, it slows down and deposits materials in its alluvial fan/delta

When a river flows into an ocean, it slows down and deposits materials in its delta

This is what i found on google “according to the collision theory, the following criteria must be met in order for a chemical reaction to occur: molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break. molecules must collide with the proper orientation.” i hope this information you.