Neco 2023 Geography Question 25

A region is situated at an altitude of \(1500\) m. The sea‑level mean temperature is \(26^{\circ}C\) and the environmental lapse rate is \(6.5^{\circ}C\) per 1000 m. The region receives an annual rainfall of \(1100\) mm and experiences a distinct dry season lasting \(5\) months. Using the following vegetation classification:\n\n- Tropical rainforest: rainfall \(>2000\) mm, temperature \(>20^{\circ}C\).\n- Tropical savanna: rainfall \(800\)-\(1500\) mm, temperature \(15\)-\(30^{\circ}C\), dry season \(>4\) months.\n- Subtropical forest: rainfall \(1000\)-\(1500\) mm, temperature \(10\)-\(20^{\circ}C\), no pronounced dry season.\n- Montane grassland: rainfall \(800\)-\(1300\) mm, temperature \(5\)-\(15^{\circ}C\), dry season \(>3\) months.\n\nDetermine the dominant vegetation type of the region.