geography in China linked to the country's historical problems with floods. also the major reasons for the country's historical issues with droughts and floods.
Chinas main source of water is rivers and when the rovers run low because of no rain there is a drought but when ever there is too much rain there is overflow/ flooding
Human migration is the movement of people from one place to another with the intention of settling in the new location. When large numbers of people relocate, historians ask questions about why these people moved and what impacts their movements had.
