Effects of Population Changes on the Environment
1. An introduction that describes the forces behind population change
Change in population takes into account the increase or decrease in the size of population in a particular period of time. In the contemporary, the population of the world has been progressively increasing. There are different forces that account for the change in population. One of the key forces is births. In delineation, the number of births causes an increase in population and having a high birth rate gives rise to a high increase in population. Another force to population change is deaths. In particular, the number of deaths have a direct effect on the decline of the population and therefore a high death rate gives rise to a high decline in population. Aspects such as growth and development in health care, technology, education have given rise to a positive population change. For instance poor healthcare causes a decline in population whereas advanced and developed medical care increases life expectancy and therefore an increase in population. In general, the rate of change in population of a particular area is obtained by subtracting the death rate from the birth rate. An additional key force to population change is migration. In delineation, migration encompasses the movement of individuals in and out of an expanse. Migration brings about population change in the sense that when people migrate from one region to another,...
References
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