Andean civilizations were predominantly agricultural societies; the Incas took advantage of the soil, overcoming the adversities of the Andejuian terrain and the weather. The adaptation of agricultural technologies that had been used previously allowed the Incas to organize production of a diverse range of crops from the coast, mountains, and jungle regions, which they were then able to redistribute to villages that did not have access to the other regions. These technological achievements in agriculture would not have been possible without the workforce that was at the disposal of the Sapa Inca, as well as the road system that allowed them to efficiently store the harvested crops and to distribute them throughout their territory. These practices were so effective that many experts believe that if they were readopted today, they would solve the nutritional problems of Andean people for many decades.