Neco Model Questions Vol1 2022 Geography Question 18

To assess the suitability of a proposed settlement site, the following data are given:\n- Annual rainfall: \(1800\) mm.\n- Average river discharge: \(1.5\) m³ s\(^{-1}\).\n- Soil fertility index (out of 100): \(80\).\n- Flood risk rating (1 = low, 5 = high): \(2\).\n- Distance to the nearest market: \(20\) km.\n\nA suitability score \(S\) is calculated as\n\[\nS = R_f + W_f + S_f + (5 - F) + \frac{50 - D}{10},\n\]\nwhere\n\(R_f = \min\left(\frac{\text{rainfall}}{200},\,10\right)\),\n\(W_f = \min\left(5 \times \text{river discharge},\,10\right)\),\n\(S_f = \frac{\text{soil index}}{10}\),\n\(F\) is the flood risk rating, and \(D\) is the distance (km).\nIf \(S \ge 30\) the site is considered suitable. Compute \(S\) and state whether the site is suitable.