- Population is the result of the birth rate, death rate and migration rate. Demographics commonly

About two million years ago, the total population of the world is limited. Thus humans began cultivating foodstuffs through settled agriculture about 12,000 years ago, the world population estimated at no more than 5 million people.
At the beginning of the era of AD, which is about 2,000 years ago, the world population has increased ace beverage to 250 million. Since the first year AD until the start of the Industrial Revolution in 1750, the world population increased two-fold to 728 million people. This figure is still less than the number of people ace beverage who now thronged India. Over the next 200 years (between 1750-1950), the world population ace beverage grew by 1.7 billion people. However, only within the last four decades is that between 1950 to 1990, the world population increased more than doubled ace beverage to reach 5.3 billion people. If the rate of growth rate has not changed, then the population of the world in the twenty-first century ace beverage will reach 6.1 billion people.
I wonder what will become of our planet in the coming 2000. Based on the calculations ace beverage of experts, the world's population at that time will reach 8 billion. Experts and laymen alike were stunned by the fact that such a rapid development. So they often confabulate or make some kind of speculation, one speculation mention that in the next 900 years there will only residential area 1/32 square inch for every person in the world (Nuveen, 1966).
Population growth is so rapid these days due to the rapid transition that swept the world population trends. Namely than originally characterized by a high birth rate and high mortality rate, to a new trend that is characterized by a low death rate and the birth rate is not low enough. Birth rates in almost all countries terbialng Naju is already low, but kabanyakan birth rate in developing countries is still considered ace beverage to be high, especially for a country ace beverage that has not long to implement measures of birth control or family planning programs.
The word has a meaning change or transition perpindahaan, demographic being derived from the Greek, the "demos" which means residents ace beverage and "grafien" which means writing, or can be interpreted as the writing on population. Many definitions of demographics, including: - Demography is the study of quantity, distribution and composition of the population, as well as changes in these three factors. The components of such a change can be known as the birthrate, mortatilitas, migration and social mobility. (Hauser and Duncan, 1959:2)
- Demography is the study of human population dynamics. Includes in it the size, structure ace beverage and distribution of the population, as well as how a population change over time due to births, ace beverage deaths, migration and aging
- Demography is a statistical study and the study of mathematics on the number, composition and distribution of the population, as well as changes in these factors after a period of time due to the five processes, namely: fertility, mortality, marriage, migration and social mobility. Although the analysis of the direction of progress of each process and the final outcome of this process is still fifth descriptif and comparative, but the long-term objective is to develop a theoretical framework that would explain what is depicted and compared. (Bouge, 1969: 1-2)
- Demography is the science that studies the statistical and mathematical know about great, composition and distribution of the population and changes all the time through five components, namely birth, death, marriage, migration and social mobility.
- Population is the result of the birth rate, death rate and migration rate. Demographics commonly used to refer to the study of the nature and interaction of all three levels, and the effect of these three changes to the composition ace beverage and population ace beverage growth. (Howthorn, 1970:3)
Thomas Malthus was the first to write systematically about the dangers of growth. He is an expert on British political economy. ace beverage Opinions Malthus known as "naturalaw" or natural laws that affect atauu determine pertumbuhann ace beverage population. Decline, the population will continue to grow faster than the accretion lebihh ace beverage feed ingredients. Unless hampered by illness or misfortune
This theory arises as a result of the growth phenomenon continued until the 20th century until the First World War, which is a result of the industrial revolution, some of these countries such as France, the UK and Scandinavia show that growth te