Mayan civilization took place when?

1800 B.C to 900 AD

Explanation: During the 1800, Mayan was considered the preclassic period or the more used word, formative period. it lasted till 900 AD because it was abandoned

the answer is title i subtitle b

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.