Birth Ratio
This is one of the most important factors to be considered when we check the change in population. The Birth rate is the number of new children born into a particular area in a given period of time. The birth rate can be defined as the ratio between live births to 1000 people. Though the increasing birth rate is good it does not guarantee an increase in the net population. The rate of death in a given area is also very important when we consider the increase in population. The net birth rate or the net increase in the birth rate is equal to the difference in the birth ratio and death ratio. For there to be an increase in the birth rate the net Birth rate should be positive.
Over the years there has been a drastic decrease in the death rate. Many factors affecting the decrease in death rate are the increased per capita income, better availability of health cares system, and more literacy among people about healthcare. The advancement in technology has also led to an increase in healthcare facilities which in turn helps increase the life expectancy of the people.
Discuss the role of any two factors influencing population change.
The population can be defined as the number of people living in a particular area. It includes all the people living in the area, infants, children, and adults. The Population of a particular area is calculated by the government in the form of a periodic census. This census is conducted by the government. In the case of India, the census is estimated or surveyed once every 10 years. Currently, the world population stands at 8 billion people with India and China being the significant contributors to the population total. The average growth rate of the world population is 1.1 percent. The increase in world population between the years 1990 and 2010 is around 30 percent. The growth of the population depends on various factors like fertility rate, birth rate, mortality rate, migration, and many other vital factors. The change in population doesn’t only depend on the increase in population but also the decrease in population.