The first sign of a complex society in Mesoamerica were the Olmec.
Pretty sure the answer is A
Answer:
a. Problem 10a: dam 10b: hummocky debris apron; and Problem 10c: slide scar
Explanation:
- The Dam is located in north Italy. It is located in the valley of the Vajont river. There were some problems associated with the dam and reservoir as the canyon was steep and had undercut the banks of the river.
