Make an essay for "how did geography play a role in developement and organization of early civillizations." Need ASAP pls

In ancient civilizations, geography affected them in so many ways, like the climate, resources, and the landscape that they use. ... The mountains provided them with protection against invasions, but the mountains were also used for trading with other to get the resources that they needed.

Such as early americas, the mountains and dry desert in the south west provided heat which native amercicans used to their advantage! they made agricultural systsems to adapt such as terrracing!

(202 bc - 220 ad) dynasty started by lui bang; a great and long-lasting rule, it discarded the harsh policies of the qin dynasty and adopted confucian principles; han rulers chose officials who passed the civil service exams rather than birth; it was a time of prosperity