Caspian Depression, Kazakstan
The Caspian Depression encompasses the northern part of the Caspian sea. The deepest point of this huge depression lies in a karst trench on the eastern side of the Caspian Sea in Kazakhstan. The low point, Karigiye, is 433 feet (132 meters) below sea level.
D) Germany
Germany was an axis power in both world wars
It was that "Flat land with poor drainage led to salinization from irrigation waters," that was a factor in the decline of Sumer, since this led to a build up of salt in the soil, which greatly reduced agricultural output.
