An arc flash can occur when differences of potential voltage reading exists. An arc flash an enormous amount of radiant energy that explodes outwards from electrical equipment, creating pressure waves These high intensity pressure waves can damage a person's hearing or even eyesight.
The answer is environmental stress
A.) Guanine = 45
B.) Adenine = (100 - 90 )/ 2 = 10/2 = 5
Hope this helps!
