Front

government

Back

A system for deciding what is best for a group of people

Front

division of labor

Back

Having different workers do different jobs

Front

arid

Back

Dry, or having little rainfall

Front

cooperate

Back

To work together

Front

specialize

Back

To work at one kind of job and learn to do it well

Front

silt

Back

Fine grains of soil and rock

Front

granary

Back

A place for storing acorns and grains

Front

spring

Back

An opening in the ground through which water flows

Front

agriculture

Back

Farming