Answer:
Because both Nepal and Bhutan are predominantly mountainous territories, their population density is very low in rural (mountain) areas, with the population concentrated in the urban areas of their valleys.
Explanation:
Nepal and Bhutan are neighbouring countries and are located within the Himalayan mountain range, between the nations of India and China.
Nepal has a population of more than 23 million, whose main cities are Kathmandu - its capital - Pokhara, Bhaktapur and Lalitpur, which have a higher population density.
Bhutan is a small nation, almost 41,000 km2 in area and less than one million inhabitants. Like Nepal, most of the population is concentrated in urban areas.
In Nepal and Bhutan the predominant mountainous topography makes the population density there very low, limited to the tribes living there. These are areas of difficult access, given the lack of roads and where cultivable land is scarce.
