Question

PLEASE PLEASE PLEASE HELP!!

Which statements describe the decline of Sumer?
Choose all answers that are correct.
a. The swamps bred insects that carried disease.
b. The needed canals became too costly to build.
c. There was a lack of natural barriers that could discourage attack.
d. As the fields of Sumer grew saltier, harvests became smaller.

Answer 1

Sumer lacked a central army to defend them and their city-states. Instead they had local armies that protected each city-state, therefore making it easier for them to be invaded.