Simple answer irrigation system.
Want more information use this source:
https://en.m.wikipedia.org/wiki/Neolithic_Revolution
Answer:
The port of Buenos Aires receives ships from all over the world that deliver machine-made goods and consumer durables and leave with grains or agricultural by-products, such as food oils. And yet, as with so much of the city, the port facilities are old and inefficient. The port facilities were privatized in 1994, and new investments in infrastructure were begun; however, it is still common at harvest time
Explanation:
The correct answer is Fair Housing Act. This act was called this way because it fought to end the right that land owners had to forbid people from living in their buildings based on their race. This also applied for religions and nationalities so it basically forbid landowners from discriminating against people who were not the standard Caucasian American person.
Disguise??????????????????????????
