Which geographic characteristics were factors in the decline of sumer? choose all answers that are correct. a. it was located on the persian gulf. b. it was located far away from rivers. c. it was located on a flat plain that made it vulnerable to attack. d. flat land with poor drainage led to salinization from irrigation waters.

How is an objective summary different from an argumentative essay? o a. a summary should remain neutral, but an argumentative essay should promote a certain viewpoint. o b. a summary should use direct quotations, but an argumentative essay should paraphrase evidence. o c. a summary should include a works-cited list, but an argumentative essay should not cite others' work. o d. a summary should focus on a thesis, but an argumentative essay should address many different topics.