the layers of the earth in order are
1.crust
2.upper mantle
3.mantle
4.outer core
5.inner core
Sea wall that you sea all over the east coast protect many cities from high tide. And keep many soil along the coast from eroding.
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.
Quakes normally occur around one of the 3 plate tectonic movement
