GEOLOGY

Detailed explanation-1: -What is the brackishness of a sample of water most closely related to? Brackish: The water has low salinity from fresh water diluting the salt water. It’s related to salinity.

Detailed explanation-2: -Salinity expresses the saltiness or dissolved salt content of a body of water. Technically, brackish water contains between 500 and 30, 000 ppm salt, usually expressed as 0.05-3.0 %.

Detailed explanation-3: -Technically, brackish water contains between 0.5 and 30 grams of salt per litre-more often expressed as 0.5 to 30 parts per thousand (‰), which is a specific gravity of between 1.0004 and 1.0226. Thus, brackish covers a range of salinity regimes and is not considered a precisely defined condition.

Detailed explanation-4: -Brackish water sources are most commonly found at transitional points of water where fresh water meets seawater. These bodies of water are known and referred to as estuaries.

Detailed explanation-5: -Brackish water is less salty than seawater, but it is more salty than fresh water. Brackish water can be found where fresh water mixes with seawater, for example in estuaries and where rivers flow into the ocean.