<span>erosion and desertification </span>
An urban area that controls neighboring farmland that is not under the control of an empire or another government is a "<span>D.city-state", since this has the relative control of a federal government without the responsibility of dealing with multiple "states". </span>
Answer: B) The U.S Embassy was negotiating with Fidel Castro and his revolutionaries.
Explanation: Fidel Castro wanted no one to leave Cuba, he wants absolute control.