How long does it take the mercury to make a complete revolution? by Sunday | Jun 13 | Geography WAEC | 0 comments A. 88 days B. 225 days C. 365 days D. 687 days Correct Answer: Option A – 88 days Users Also Read These:A glass plate 0.9cm thick has a reflective index of…An electron of mass m and charge e moves in a…A given volume of oxygen diffused through a porous…How long does it take the mercury to make a complete…An immersion heater is rated 120W. How long does it…