Which of the following sources of water is least useful for irrigation purposes? by Sunday | Jun 12 | Agricultural Science WAEC | 0 comments A. sea B. river C. lake D. borehole Correct Answer: Option A – sea Users Also Read These:In which of the following activities is land not…Which of the following methods of irrigation is most…A tap supplies water at 26°C while another supplies…Which of the following rocks is suitable for the…A tap supplies water at 30°C while another supplies…