Plz help! Due tonight! Describe why 1968 is a year that stands out in a decade full of chaos and explain what impact 68' had on the United States as a whole.

This photo shows an early mesoamerican structure, specifically from the zapotec culture. what was this structure most likely used for? a. creating terraces for farm fieldsb. practicing religious ceremoniesc. playing a ball game with stone hoopsd. protecting a city from invading armies