The "Ring of Fire" is a set of that often occur along plate boundaries. There are many plate boundaries along Pacific coastlines.

There are many plate boundaries along Pacific coastlines is explained below in complete details.

Explanation:

The San Andreas Fault, extending along the central west shoreline of North America, is one of the common operating faults on the Ring of Fire. It rests on the transform boundary within the North American Plate, which is traveling south, and the Pacific Plate, which is traveling north. This kind of boundary produces a large number of earthquakes as tightness in Earth's crust forms up and is discharged.

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.