Answer:
Climatic conditions and water availability is very important for population to survive.
Explanation:
Dry region of Namibia
Namibia is a country in southern Africa. Namibia enjoys a subtropical desert climate that is characterized by temperature differences in the day and nighttime.
As a result, the dry regions of Namibia there is a low density of water availability and population.
Brahmaputra River delta
The Brahmaputra river is found is Assam State of country India. It is mighty river full of resources and forms the Brahmaputra delta. There is a high density of population and water availability in Brahmaputra region. The climate is also good.
New York City
New York city has a high density of population and water availability due to the Hudson river that flows by the New York city.
The Arctic Gobi Desert in Mongolia
Low density of water availability in Gobi desert. Gobi desert is a cold and dry desert with sometimes frost and snowfall. Population is also less.
Tokyo
Tokyo is a city in Japan. It is population rich city in the world. There is a high density of population in Tokyo. It enjoys subtropical climate. There is high density of water availability in Tokyo due to Tonegawa and Arakawa Rivers.