By crashing glaciers that were melting.
The western boundary of the Roman Empire was the Atlantic Sea. The eastern boundary was Persia (modern day Iran and central and southern Iraq).
The Ohio and Mississippi rivers outlined the boundaries of the Western and Southern boundaries of the Northwest Territory.
The two bodies of water that formed the eastern and southern boundaries of Shang territory were the Yellow Sea to the east and the Yangtze River to the south.
The Appalachian Mountains formed the western border to the eastern colonies in North America.
The Atlantic Ocean.
eastern and western
The full circle formed by the Prime Meridian and the meridian of 180° longitude separates the eastern and western hemispheres.
The full circle formed by the Prime Meridian and the meridian of 180° longitude separates the eastern and western hemispheres.
The full circle formed by the Prime Meridian and the meridian of 180° longitude separates the eastern and western hemispheres.
West Virginia
it formed from ancient sand dunes.
The Yellow Sea formed the eastern boundary of Shang territory, while the Yangtze River marked the southern boundary.