Here we study the world population
NOT GOLD BUT ONLY WOMEN CAN MAKE A PEOPLE GREAT AND STRONG.
Pattern of distribution in world
DENSITY OF POPULATION
Per square km. Population distributed is called density.
Density= population / area
Factor influence the distribution of population:
1. Geographical factor
2. Economic factor
3. Social and cultural factor
People tends to move from places where there is political unrest.
POPULATION GROWTH , GROWTH RATE, NATURAL GROWTH
Growth– Changementinpopulationinparticularareabetween a particular time known as population growth.
Growth Rate- Change in population when expressed in the percentage called population growth rate.
Natural growth=Births – deaths
Actual Growth= Birth+ in migration -death – out migration. Positive and Negative growth of population
Note that Migration is also effect these.
Crude birth rate is expressed as a number of live births in a year per thousand of population.
Crude death rate is expressed as a number of death in a year per thousand of population.
Migration may be temporary seasonal or permanent. And
Immigration- Migrants who move in to a new place called immigrants.
Emigration- Migrants who move out of a place are called a emigrants.
IMPACT– a small increase in population is desirable in a growing economy. Of these the depletion of resources is very serious. however , Polpulation decline is also a matter of concern.
This theory describe to predict the population of any area.
population of any region changes from high births and high deaths to low births and low deaths as society progresses from rural agrarian and illiterate to urban industrial and literate society. These changes occur in stages which are collectively known as the demographic cycle.
Population Control Measure
family planning services is a significant factor in limiting population growth and improving women’s health.
for the sustainability of our resources the world will have to control the rapid population increase.