Question

what are estuaries?
plz answer
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Answer 1

Answer:

An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environments known as ecotone

Answer 2

Answer:

Estuary is an area where salt water of sea mixes with fresh water of rivers. Estuary is formed by a tidal bore, which ablates the riverbed and carries the silt out to sea. Delta: When rivers drain its water into sea or any other watercourse along with sediment at the mouth of the river.