Give two (2) advantages of separate system of drainage. – NABTEB QUESTION By: Sunday|Published on: Sep 22|Categories: 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:Explain FOUR advantages and TWO disadvantages of…LIST THREE advantages of semi conductors - NABTEB QUESTIONGive TWO advantages of complex structural…Give any TWO advantages each of the machines below.…Define the following sewage/drainage terms:- (i)…SEE ALSO Explain FIVE factors to be considered in setting up a retail trade. - NABTEB QUESTION