When planning for the future of a city, the urban planners need to ensure that the city is able to afford its current and future residents with the facilities needed to provide them with the maximum welfare possible.
To do this the urban planners should reach out to demographers. Demographers study human populations with a view to analyse and ascertain various characteristics such as size, composition, how they are distributed within a geopolitical zone and most importantly, how they will change overtime.
For urban planners to plan for a city that will take care of future residents as well, they would need to know how the kind of future residents they are planning for and this is when they will turn to demographers whose job it is to study and possibly predict future population.
As subconduction is a geologic process that takes place at the convergent boundaries. Where the one plate collides with the another plate that moves underneath the lighter plates. The subducting is the process that relates to the formation of the mountain building and is associated with the formation of volcanoes.
<u>The origin of the hotspots takes place due to the slow movement of the plate tectonics as they are fed by the narrow streams that come from the mantle and are related to the island formations like that of the hawaiian islands.</u>
Migration may lead to an improvement in income distribution because labor exodus may generate tight labor market conditions in supplying areas, resulting in increased wages of rural workers. The evidence of Pakistan tended to support this.
