In what region does the state of wisconsin fall under?

Wisconsin  is a U.S. state located in the north-central United States, in the Midwest and Great Lakes regions. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michigan to the northeast, and Lake Superior to the north.

It falls in the north-central United States, in the Midwest and Great Lakes regions.

the area of land that drains into a river or lake an inland basin that connects to another inland basin (D)

Explanation:

A watershed is an area of land which contains common rivers and streams that drain into a larger body of water like an ocean, lake or larger river. Watershed can either cover a small or large area.

Every streams flowing into small or larger rivers, and then into the ocean, develop a network of waterways. For example, Mississippi River watershed is a large watershed. Every tributaries to the Mississippi which collect rainwater drain into the Mississippi and it also drains into the Gulf of Mexico eventually.