The techniques usually employed for actual delineation of functional regions are :

• Flown and gravitational analysis

• Simple correlation analysis

• Composite index method analysis

• Ranking co-efficient method analysis

• a-iv , b-iii , c-ii , d-i

• a-iv , b-ii , c-iii , d-i

• a-iii , b-iv , c-i , d-ii

• a-ii , b-iii , c-iv , d-i

he gravity principle in identification of nodal regions states that the interaction between two geographic points is directly related to :

• Their masses

• Their distance

• Their mode of transport

• Their size of settlements

Which one of the following theories emphasizes the policy oriented concepts such as propulsive firms , leading industries and agglomeration ?

• Central Place Theory

• Theory of Industrial Location

• Growth Pole Theory

• Theory of spatial organisation