Which of the following are basic elements in Peter Haggett’s model for the Study of Spatial Systems?
(I) Channels
(II) Diffusion
(III) Hierarchies
(IV) Movements
(V) Surfaces
1
(I) and (II)
2
(I), (II) and (IV)
3
(III) only
4
(I), (II), (III), (IV) and (V)