GENERAL KNOWLEDGE

Detailed explanation-1: -An estuary is an area where a freshwater river or stream meets the ocean. In estuaries, the salty ocean mixes with a freshwater river, resulting in brackish water. Brackish water is somewhat salty, but not as salty as the ocean. An estuary may also be called a bay, lagoon, sound, or slough.

Detailed explanation-2: -The four major types of estuaries classified by their geology are drowned river valley, bar-built, tectonic, and fjords.

Detailed explanation-3: -An estuary is the area where a river meets the sea or ocean, where fresh water from the river meets salt water from the sea.

Detailed explanation-4: -An estuary is a partially enclosed, coastal water body where freshwater from rivers and streams mixes with salt water from the ocean. Estuaries, and their surrounding lands, are places of transition from land to sea.