Military imperialist power
"He decided to keep a few of the native people captive" most likely describes why some of Pizarro’s men called him a butcher.
This phrase shows that Pizarro had a tendency to resort to inhumane practices, such as keeping prisoners without their consent, in order to reach his goals. Francisco Pizarro is also known to have committed other acts of cruelty such as executing the Incan emperor Atahualpa in 1533, as well as one of his generals.
Atlanta, Georgia, is located at an interesting place, because it is just above the 'border' where two different air masses collide. So depending on the time of year, there can be either continental, moderate (in winter cold), air masses (for most of the year) or maritime tropical, warm, moist, air masses when the storm season is on, and the air masses from the Caribbean see go deeper inland. Note that none of them form over Atlanta, but are forming in other places and are coming towards it.