Is the East River off Manhattan in New York a true river or is it an estuary of the Atlantic Ocean?

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The East River is a tidal strait. It's a strait in that it is a "water passage" between Manhattan and Long Island. Because of tides, it appears to flow like a river. It's not an actual river because it connects on both ends to the ocean. Rivers flow from inland fresh water sources (such as mountain runoff or springs). The Hudson River, on Manhattan's West side, is a true river. It flows downstream from the North. Accordingly, the East River is salt water, the Hudson is fresh water. The East River is not an estuary, though--an estuary is the point of mingling of a river and the ocean. The mouth of the Hudson, though, while perhaps technically forming an estuary, flows around various islands and is channeled to the point that the distinction isn't worth making, as long as you ignore Spuyten Duyvil. You could say the East River is associated with an estuary, but it isn't one itself. One other thing: while the Hudson River does carry fresh water from upstate, the salt water from the Atlantic mingles upstream as far as Poughkeepsie, depending on tides, so it's pretty salty when it hits Manhattan.
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What rivers empty into the Atlantic ocean?

There are many rivers that empty out into the Atlantic Ocean. Someof them include the Amazon River, Orinoco River, Congo River,Orange River and Savannah River.

Which river empties into the Atlantic Ocean?

Lots of Rivers empty into the Altantic Ocean. All those on the eastern coast of South America, many on the eastern coast of North America, The western coast of parts of Europe

Is East River of New York a river?

No, the East River is not a true river. It is a tidal strait. It connects to the ocean on both sides. It flows south from the bay known as the Long Island Sound, down the east
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Is Atlantic Ocean a river?

no because you already know it it is an ocean take a trip there but be careful remember what ever happen to the Titanic many people died because it was so cold like your in th