JAMB Geography 2021 Paper

Concept:The difference between the highest and lowest temperatures recorded in one day is the daily temperature range.Explanation:A combined maximum and minimum thermometer records the hottest and coldest temperatures of the day.The hottest temperature is the maximum daily temperature, while the coldest temperature is the minimum daily temperature.The difference is given by:$$\text{Diurnal range} = \text{Maximum temperature} - \text{Minimum temperature}$$Therefore, subtracting the coldest reading from the hottest reading gives the diurnal range of temperature for that day.Answer:A. Diurnal range of temperature