Native american groups from the ohio valley spread certain rituals down to georgia during the woodland period. the rock piles and earth mounds in georgia that date to the woodland period are likely a) dams. b) missions. c) burial mounds. d) food storage areas.

C) burial mounds.

Explanation:

structures related to funeral practices began to appear in some areas, such as ossuaries and burial mounds. In some of these structures, a large number of people were placed to indicate a fairly egalitarian social organization. On the contrary, in other areas, burial mounds are reserved for a smaller number of people, indicating a certain degree of state differentiation between people.

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