Oceans

What is a natural or manmade earthen barrier along the edge of a stream, lake, or river called?

More Questions from Oceans
Which animal spawns in fresh water but lives most of its life in the sea?
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In the 1970's, a large and failed expansion to Florida's Osborne Reef was comprised mostly of what?
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A strange hook-shaped fish that lives in warm water is known as what?
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What is the most common contaminant found in fish?
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Coral reefs are largely in what ocean zone?
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Which reef would you find in the Gulf of Mexico?
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What is eutrophication as it applies to oceans?
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The pool at the foot of a small water-fall in a river is called what?
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