Answer:
Nelson rules are a method in process control of determining if some measured variable is out of control (unpredictable versus consistent). Rules, for detecting "out-of-control" or non-random conditions were first postulated by Walter A. Shewhart in the 1920s.
Explanation:
hope this helps
Chlorine-36 has been widely used for dating old groundwater.
A solution with pH of 8 and above is basic so definitely OH-
