The prime meridian at longitude 0° marks the eastern boundary of the Western Hemisphere The corresponding anti-meridian at Longitude 180° marks the western boundary of the Western Hemisphere. (In practical terms you could also consider the international date line to be the boundary - just not the official boundary.)
The Ural Mountains form the western boundary for the continent of Asia.
Eastern boundary currents are relatively shallow, broad, and slow-flowing. Western boundary currents are warm, deep, narrow, and fast-flowing currents that form on the west side of ocean basins due to western intensification.
There was one major geographic feature that formed the Western boundary of the 13 colonies. This boundary feature was the Appalachian Mountains.
Convergent on the western perimeter, divergent on the Easter perimeter.
The Mississippi River formed the western boundary.
New Hampshire
the Delaware river
The western boundary of Romania is with Hungary.
The western boundary of Romania is with Hungary.
. the Mississippi River.
The western boundary of the 13 colonies was the
Seneca
the
nothing
the
Ural mountain marks the western boundary of asia