Britain, France, Russia, Italy and the United States.
It's A
Irrigation was overused, the soil didn't get any rest (crop rotation is a younger invention), the result was salinization of the soil, which led to decline of Sumer.
Do you have a pic? I don't really understand!
Answer:
the use of British bases in the Atlantic
Explanation:
They win if they get elected by the party to represent them