Use the drop-down menu to complete the sentence

The first MESOAMERICAN civilizations began

around 1500 BCE.

A. Right after people cross the BERING land bridge.

B. When nomadic hunters settled in the valley of Mexico.
C. Once people learn how to farm in the tropical forest.
D. When the Maya built the first cities in central America.

B. When nomadic hunters settled in the valley of Mexico.

What are CHINAMPAS

A. Artificial islands used for farming.
B. Crops grown by AZTEC farmers.
C. Bird sacred to the AZTEC people.
D. Walls built to hold back floodwaters.

A. Artificial islands used for farming.

Use the drop-down need to complete the sentence

Scientist have learned about the ancestral, polio, mostly spice, studying
A. Oral history.
B. Written records.
C. Mounds.
D. Housing and artifacts.

C. Mounds.