demand by two or more groups for a resource that is in short supply

• domesticate

• specialize

• competition

• barter

to help grow

• domesticate

• barter

• infrastructure

• cultivate

to adapt and use for agricultural or other purposes

• domesticate

• cultivate

• textiles

• surplus

an extra amount beyond what is needed

• surplus

• infrastructure

• competition

• cultivate

to develop a specific set of skills for a single purpose

• cultivate

• barter

• specialize

• domesticate

cloth or fabric

• surplus

• competition

• textiles

• surplus

to trade goods without using money

• competition

• infrastructure

• domesticate

• barter

the public works system that includes roads, bridges, irrigation, public transportation, etc.

• infrastructure

• cultivate

• textiles

• domesticate