GEOLOGY

Detailed explanation-1: -An estuary is an area where a freshwater river or stream meets the ocean. When freshwater and seawater combine, the water becomes brackish, or slightly salty.

Detailed explanation-2: -The mixture of seawater and fresh water in estuaries is called brackish water and its salinity can range from 0.5 to 35 ppt. The salinity of estuarine water varies from estuary to estuary, and can change from one day to the next depending on the tides, weather, or other factors.

Detailed explanation-3: -Estuaries and their surrounding wetlands are bodies of water usually found where rivers meet the sea. Estuaries are home to unique plant and animal communities that have adapted to brackish water-a mixture of fresh water draining from the land and salty seawater.

Detailed explanation-4: -Brackish water, sometimes termed brack water, is water occurring in a natural environment that has more salinity than freshwater, but not as much as seawater. It may result from mixing seawater (salt water) and fresh water together, as in estuaries, or it may occur in brackish fossil aquifers.

Detailed explanation-5: -Brackish water is a mix of fresh water and saline water. It occurs where oceans meet outwardly flowing rivers and streams. Examples of brackish water include estuaries, mangrove swamps, and salt marshes. Brackish water is the natural habitat for a diverse group of aquatic animals that have adapted to the environment.