CSEE (Form 4) Parallels and Meridians — practice questions

1. Local time is determined by longitude, since the Earth turns through 15° of longitude every hour. 2. Places sharing the same meridian therefore share the same local time. 3. Addis Ababa and Dar es Salaam both lie on 39°E. 4. So when it is noon in one, it is noon in the other. 5. A time difference would require a difference in longitude, and here there is none. _Source: NECTA CSEE 2023 Geography 013, Question 1: Multiple Choice Questions, item (vii)_

1. The Earth completes one full rotation of 360° in 24 hours. 2. Dividing gives $\dfrac{360}{24}=15$ degrees per hour. 3. So each 15° of longitude corresponds to one hour of time difference. 4. Equivalently, 1° of longitude equals four minutes of time. 5. This is why two places on the same meridian, such as Addis Ababa and Dar es Salaam, share the same local time. _Source: NECTA CSEE 2023 Geography 013, Question 1: Multiple Choice Questions, item (vii)_