Neco 2024 Geography Question 5

The table below shows the average monthly temperature (°C) and total monthly rainfall (mm) recorded at a weather station in the northern region of Nigeria over a complete year. | Month | Temperature (°C) | Rainfall (mm) | |-------|------------------|---------------| | Jan | 28.5 | 12 | | Feb | 29.0 | 8 | | Mar | 30.2 | 5 | | Apr | 31.5 | 2 | | May | 32.1 | 0 | | Jun | 31.8 | 0 | | Jul | 31.0 | 1 | | Aug | 30.5 | 3 | | Sep | 30.0 | 7 | | Oct | 29.4 | 15 | | Nov | 28.8 | 20 | | Dec | 28.2 | 18 | Using the data above, answer the following questions: a) Calculate the mean annual temperature. b) Determine the coefficient of variation (CV) of the monthly rainfall and interpret its significance. c) Identify the season (wet or dry) that would be most suitable for planting millet in this region and justify your choice with reference to the data. d) Discuss two major geographical factors that could explain the observed temperature and rainfall pattern in this part of Nigeria.