South- facing slope NORTH Southern Hemisphere North- 2 facing slope SOUTH (Source Examiner's own sketch] 1.4.1 What evidence suggests that this valley is situated in the Southern Hemisphere ? 1.4.2 How does radiation fog develops? (1 x 1) (1) (1 x 2) (2) (142) Explain why the area A is referred to as the shadow zone. (1 x 2) (2) 1.4.3. Explain how wind B will develop during the day. (1 x 2) (2) 1.44 Differentiate between radiation fog and frost pocket that forms at C (2 x 1) (2)​