Atlantic
The Atlantic Ocean is closest to Illinois.
Gulf Coast is the closest but it's not technically an ocean (specifically Gulf Shores Alabama). The Atlantic Ocean is the closest ocean beach to Illinois.
The closest ocean in the Atlantic, the closest oceans state is probably Pennsylvania.
The closest to a stone I could get is the Illinois State Mineral, which is Fluorite.
The ocean closest to Michigan is the Atlantic Ocean.
Tennessee
The Atlantic Ocean.
The eastern border of Illinois is shared with Indiana.
Missouri
Michigan (MI) has land borders with Ohio, Indiana, and Wisconsin. The closest state without physically touching Michigan is Illinois. However, Michigan also shares water borders with Minnesota and Illinois across the Great Lakes. Taking this into account, the closest state without bordering Michigan would be Pennsylvania.
the arctic ocean is = closest to what? =
The Pacific Ocean is the closest ocean to Mongolia.