How do estuaries improve water quality?
What is an estuary?
O Large body of water that is composed of salt water only and it is in the ocean.
Large body of water that it is composed of freshwater only and it is rivers and streams which connect to the ocean.
Large body that is composed of brackish water and other rivers and stream feed to it.
◇ Large body of water that is composed of warm and cold water that opens up into a lake.