UGC NET geography
Date-- 14.04.21
Dipendu mondal
1. transport system model- -Ullman
2. concentrating theory. --Thomson
3. intervening opportunities model--S.A.Stouffer
4. demographic transition theory--Thompson and notestein
5. fission theory--Rossgun
6. electromagnetic theory--Dr. Hannes Alfven
7. Dust and gas hypothesis--Weitzsacker
8. concept of compage--whittlesey
9. organic theory--ratzel
10. Gibbs Martin index--crop diversification.