QUESTION 17 5 points Save Ans (a) List four types of hazard. (1 mark) (b) To minimise the risk of salinization, over the

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Question 17 5 Points Save Ans A List Four Types Of Hazard 1 Mark B To Minimise The Risk Of Salinization Over The 1 (63.39 KiB) Viewed 31 times

QUESTION 17 5 points Save Ans (a) List four types of hazard. (1 mark) (b) To minimise the risk of salinization, over the 4 years of irrigation, it was decided to use recycled water for irrigation for the first 3 years and then in the 4th year, town water supply was used. Estimate the cost of control measure used to minimise the risk of salinization of the soil due to the use of recycled water. (4 marks). The following data may be used: • Cost of recycled water = $0.95 / KL ● Cost of town water supply = $ 2.25 /kL • Interest rate = 5% ● Area of land to be irrigated = 1 ha ● Irrigation water required = 10 ML/yr For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). B I US Paragraph Open Sans,sa... v 10pt 田く Ix XQ5 홍동 EE >