What geographical advantages did incas have?

The Andes mountains were quite an advantage to the Inca. They gained very important mineral resources like gold and silver and emeralds, as well as copper and tin ( iron being unlikely though). Desert and jungle acted as natural barriers for the empire, as well as peaks and gorges of the mountains that were connected by bridges; and control of these would allow control of their cities. The mountains supplied a good flow of fresh water, and Inca ingenuity created aqueduct systems carved out of the rock itself in order to funnel this water down to cities and towns.

Even 11,000 feet or more in the air, the Inca were able to transform the landscape to use for agriculture, in which terraces on the side of cliffs are evidence of this and can still be seen today. The climate was mainly a dry one and with the help of water coming from the melting glaciers high up on the mountain, the growth of crops excelled, thus the people of the empire were well feed.

The Inca were a highly organized people, and knew how to use geography to their advantage.

cultural achievements of the 1920's 2010  

1. cultural achievements and african american achievements in the 1920’s  

2. art and literature charles lindberg flew from ny to paris, france. became national hero; first transatlantic flight.  

3. greenwich village (new york) and the south side (chicago)  many artists, writers, and intellectuals flocked to these areas to share ideas  people lead bohemian, or artistic and unconventional, lifestyles

a. theta waves. this is because the person is in a light sleep which means the brain waves would show these kind of waves.