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Answer Lake Michigan is called a lake because it is surrounded by land all the way around it. Also it's fresh water, not salt water. Oceans tend to be salt water no matter what country they surround and there are no lakes the size of an ocean.
A lake and an island are kind of like opposites. An island is completely surrounded by water, while a lake is completely surrounded by land, so the answer would be a lake.
That is the definition of a lake.
A body of water completely surrounded by landA body of water completely surrounded by land would be a lake. Lake's are usually fed by undergeound springs. Quarry's are also an example, although they are man made, after the excavations hit a spring underground.[http://wiki.answers.com/help/answering_questions
That is called an ocean.
because Ocean made it
Watershed- the area of land where all of the water drains into a common water body, such as a river, lake, or ocean.
an island
A lake is a body of standing water completely surrounded by land.
A lake is generally fresh water, where the ocean is salt water.
Rivers flow into large bodies of water, such as oceans, bays, or lakes. The transition between river and ocean, bay or lake is known as a delta. Most rivers have a delta, an area where the river divides into many channels and river water mixes with sea or lake water.
A river runs from a mountain or hill all the way to the ocean.