Answer:
Water in this area may have been leftover from ancient times when saline seas occupied the western U.S., and, also, as rainfall infiltrates downward into the ground, it can encounter rocks that contain highly soluble minerals, which turn the water saline.
I believe the answer you're looking for is Southwest Asia, looking at a climate map, the drier areas are located to the southwest.
Answer:
The roads present between these villages.
Explanation:
The place which is present between these four villages is the place where roads can be constructed with available money so this place is the best location for the construction of road that connect all four villages to each other. Only those roads are constructed which is located between two villages with the available money because the money is not well enough for the construction of very big roads.