Place the following american civilizations in chronological order.
a. maya, aztec, olmecb. olmec, maya, aztecc. aztec, olmec, mayad. maya, olmec, aztec

The correct order is Olmec, Maya, Aztec

b]to spread the message of black power

map scale refers to the relationship (or ratio) between distance on a map and the corresponding distance on the ground. for example, on a 1: 100000 scale map, 1cm on the map equals 1km on the ground.