Answer:
The terraces were built to make the most efficient use of shallow soil and to enable irrigation of crops by allowing runoff to occur through the outlet. The Inca built on these, developing a system of canals, aqueducts, and Iquitos to direct water through dry land and increase fertility levels and growth.
Explanation:
<span>A small group of people. The idea of an oligarchy is that a select handful of people essentially form all of the power over a body of people. It's almost like a dictatorship only with a couple more people added to the top of the chain rather than just an individual. The citizens abiding under an oligarchy have no say or voting power in the process or ruling.</span>
Answer:
Groundwater.
Explanation:
Becasue it's underground and not on the surface.