Demography greatly affects the distribution of population. People want to get settled on levelled plains and mild slopes. Such regions are favourable for crop production, road construction and industries. Mountainous and hilly regions are obstructive in the development of transport system, therefore initially they are not favourable for agricultural and industrial development.
Therefore, population is less in these regions. Example: The Ganga plain is one of the world’s most densely populated regions, while the mountainous parts of the Himalayas are regions of very less population.
