What is an energy level? a. The region outside the nucleus where an electron is likely to be moving.
b. The region inside the nucleus where an electron is located.
c. The region outside the nucleus where a proton is likely to be moving.
d. The region outside the nucleus where a neutron is likely to be moving.

A. The region outside the nucleus where an electron is likely to be moving.

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.

wher is the rest of the question