What is the difference between a delta and a harbor?

A delta is a landform created at the mouth of a river where it meets a body of water, resulting from the deposition of sediment carried by the river. In contrast, a harbor is a sheltered area along a coastline where ships can moor safely, often providing protection from waves and storms. While deltas are primarily shaped by riverine processes, harbors are human-made or naturally occurring areas designed for maritime activities.