Many of the candidates answered the question and majority of those who answered the question did very well. They were able to explain sunrise and sunset correctly and they also got the correct answer by calculating the distance between Town A to Town B. However, some of the candidates misinterpreted the question by assuming that “with the aids of diagrams, explain” mean the same thing as “use diagram to show”. Thus, after illustrating circumnavigation, sunrise and sunset with the diagrams such candidates did not make further explanation. This absence of explanation made them lose precious marks.