Give two (2) advantages of separate system of drainage. – NABTEB QUESTION by Sunday | Sep 22 | NABTEB QUESTIONS | 0 comments ANSWER: (i) Reduction in the cost of pumping/evacuation (ii) Reduction in the cost of sewage treatment Users Also Read These:Give any TWO advantages each of the machines below.…Give two chemical properties of C02 and two uses of…Name two methods that can be used to separate an…Give TWO examples of a word processing package -…Name THREE important alloys of aluminium. ii. Give…