10 inches
How many inches of rain fell each year?
A period of time of no snow or water
What is drought
Mesopotamia
Where is the region where the Tigris and the Euphrates rivers flow?
Farmers needed the right amount of water
Why was farming hard?
Soil
When water flowed down the mountains, what did it pick up?
Mesopotamians used mud and plaster.
Why did mud buildings crumple easily?
Soil deposited by rivers.
What is silt?
Rain and melting snow
What caused rivers to swell?
Flat land bordering the banks.
What is a floodplain?
6000 B.C.
When did people start building canals?
Irrigation
What is the process of carrying water from rivers to fields called?
Mesopotamians grew a surplus of grain
Why was Mesopotamia able to trade outside their own land?
land between the rivers
What does Mesopotamia mean?
People starved
What happened when a drought came?
More than what people needed for themselves.
What is a surplus?