freshwater, brackish water, and
salt water
brackish water
is water that has more salinity then fresh water and less then seawater.It may result from mixing of seawater with fresh water.
Fresh water
it is naturally occurring water on the earths surface in ice sheets, ice caps, glaciers, icebergs, bogs, ponds, lakes, rivers and streams, and underground as groundwater in aquifers and underground streams.
salt water
it is the most of any other type of water, it is the water from the sea