Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) General Knowledge Geography (World Geography) World Economic and Human Geography
As per Edward Ullman's mode of transport system, which one of the following describes 'complementarity'?
1
Demand and supply of a product between regions
2
Cost of movement of a product between regions
3
Availability of a product in a region
4
Non-availability of a product in a region