What were the purposes of the earthworks built by cultures of eastern north america? select three .
a. as burial mounds
b. as temple platforms
c. as astronomical observatories
d. as defensive structures
e. as fields for athletic competition

Answer

Explanation

Earthworks is the process of soil disturbance in any means which includes excavation, digging tunnels and the construction/reconstruction of any track, embankment, or drainage channel. In eastern North America cultures were built by earthworks for the purposes of burial mounds which were used as graves , temple platforms where different groups of people went for worship, they were also built by earth-workers and defensive structures. These allowed people to be able to defend themselves whenever war broke.

interdependence is when all participating groups and individuals depend on each other. if you depend on one anothers goods, you end up trading in order to get the items you're looking for. (for ex: if i have food and you have water, we trade in order to depend on each other to live)

the answer is a. harriet tubman was a nurse on the battlefield.