The three things that were accomplished by the fall of Atlanta are It improved Northern morale, it had help Lincoln get reelected in November, and destroyed the South ability to resist.
The main factor was the utilization of raised field agriculture. They would build these fields that had been artificially raised to a certain height along a flowing water source (mostly rivers but occasionally streams as well in some cases). When tropical weather patterns would cause said water sources to flood, instead of washing away the crops, it would act as irrigation for the raised fields. Securing a steady food source allowed the Mayans to support a large civilization in the tropical regions they called home.
They had the ability to take inventions created elsewhere and use them on a much bigger scale.
The answer is true, the Crusaders became part of the explorations that helped trade. They learned the routes and new areas for territorial expansion on their journey. It was a violent path of Christian reclamation of land against Muslims that took Jerusalem land. They became the first keys of colonization. Furthermore, they had the opportunity to learn the cultures of other lands which was a benefit on understanding trade and profitable products
The answer is C. Prosecutors who punish leaders who commit atrocities