Early Americas

Front

What caused sea levels to fall, uncovering the land bridge between Siberia and present-day Alaska?

Back

Glaciers

Front

What did people begin to do that led to permanent settlements?

Back

Farm

Front

What allowed the first cities to form?

Back

Surplus of food

Front

What gave rise to new civilizations in the Americas? Organized government, different social classes, complex religion, and record keeping, Building terraces, Creating quipus, Developing city-states

Back

Organized government, different social classes, complex religion, and record keeping

Front

What is a political unit that controls a city and its surrounding land?

Back

City-state

Front

What did the Aztecs form to the northwest with causeways or raised dirt roads?

Back

Civilization

Front

What did the Incas use to spread royal orders?

Back

Teams of runners

Front

What were quipus used for?

Back

Message-recording devices

Front

What did the Incas create to farm mountainsides?

Back

Terraces

Front

Which of the following was an achievement made by the Maya? calendar systems, floating gardens, quipu, terrace farming

Back

calendar systems