The three horizons make up a soil profile. A soil profile is an overview that shows each of the soil's horizons. A soil horizon is each distinct layer of a soil composition.
Multiple soil horizons make up a soil profile. Soil horizons are distinguishable regions of soil. They run parallel to the surface and have different characteristics. The soil horizons include the A horizon, E horizon, B horizon and C horizons. The soil profile is a vertical cross section showing these horizons.
