When varying greatly in size as a result of flooding or evaporation, this means that it has to be a body of water. The only body of water provided (Whose location is correct) is Great Salt Lake, Utah.
Answer: Where it rained nearly all of the time
Explanation
People began to domesticate animals and crops...
and as their tools became better they were able to grow crops and livestock
Perceptual adaptation
ability to adjust to changed sensory input, including an artificially displaced or even inverted visual field.
