Home » Chemistry mcqs » Periodic cleaning is used to _________Periodic cleaning is used to _________ by a) Increase efficiency b) Decrease efficiency c) Increase pressure d) Decrease dissolved oxygen Related Posts:Sperms are _________ in origin.The one which is present in all aerobic species is…_________ is the shortcut key to select the entire…The arrangement of _________ speaks of the division…Deoxygenated blood first enters in _________ part in fishes?An insulin molecule consists of _________…