People prefer living on flat plains and gentle slopes. This is because such areas are favourable for the production of crops and to build roads and industries. The mountainous and hilly areas hinder the development of transport network and hence initially do not favour agricultural and industrial development. So, these areas tend to be less populated. The Ganga plains are among the most densely populated areas of the world while the mountains zones in the Himalayas region.

Which of the is NOT a geographical factor influencing distribution of population ?

Urbanisation

Urbanisation is an economic factor affecting distribution of population. Rest of the options are geographical factors.