Citizens of polis are expected to B. fight to defend the polis.
I'd choose this answer if you can choose only one. If there are multiple answers, then I'd also choose A. serve on juries and <span>D. be devoted to the polis.</span>
No, the vast distances that existed between civilizations and the physical terrain (mountainous) that separated them were too great for humans to cross. Journeys and trade routes would have taken years to cross. Horses shortened these travels times and made journeys more survivable, as such the people were able to expand.
