INTRODUCTION:
Population explosion is condition where an organisms numbers exceeds carrying capacity of its habitat.It is a curse and is damaging to the development of the country and its society.The developing countries already facing lack in their resourses,and with the rapidly increasing population,the resourses available per person ,further leading to increased poverty,malnutrition and other large population related problems.
The literal meaning of population is “the whole number of people or inhabitants in a country or region” and the literal meaning of population explosion is “ a pyramiding of numbers of a biological population”.
As the number of people in pyramid increases,so do the problems related to population explosion also increases.
FACTORS AFFECTING POPULATION CHANGE:
The main factors affecting population change are the birth rate,death rate and migration.
BIRTH RATE:
The birth rate is ratio between the number of births and individuals in specified population and time.
DEATH RATE:
The death rate is ratio between the number of deaths and individuals in specified population and time.
MIGRATION:
The migration is the number of people moving in(immigration) and number of people moving out(emmigration) of country,place or locality.
POPULATION CHANGE:
The population change is calculated by the formula
Population change =(Births + Immigration)-(Deaths + Emmigration)
The recent increase in the world population has been caused due to the following major reasons:
1. The increase in birth rates due to medical improvements.
2. The decrease in death rates due to better medical facilities and advancements in the field of medicine.
3. Immigration to better developed countries due to several reasons like better job opportunities, war, and natural causes like hurricanes, earthquakes, and so forth.
India, being a developing country, has had to face several economic and political challenges. One of the most important