Population Change
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Population structure | the breakdown of a country's population into groups defined by age and sex.
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Death rate (DR) | the number of deaths per thousand population per year, expressed as deaths per thousand.
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Birth rate (BR) | the number of live births per thousand population per year, expressed as births per thousand.
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Infant mortality | a measure of the number of infants dying under one year of age, usually expressed as the number of deaths per thousand live births per year.
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Natural increase/decrease | the difference between the number of births and deaths for every hundred people per year expressed as a percentage.
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HIV | human immunodeficiency virus, which attacks the immune system of people who are infected.
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Aids | acquired immune deficiency syndrome; a group of infections, including pneumonia, TB and skin cancers, that strike people whose immune system has been damaged by the HIV virus.
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Dependency ratio | shows how many young people (under 16) and older people (over 64) depend on people of working age (16 to 24).
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Life expectancy | the average age to which the population lives. It is expressed in terms of years. Male and female life expectancy figures are often given separately.
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Optimum population | the population at which the quality of life of the people of a country or a region is the highest possible, at a given level of technological development.
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Overpopulation | when any increase in population reduces the average quality of life of the population.
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Under population | when an increase in population could increase the average quality of life.
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Genocide | the deliberate and systematic destruction or killing of an entire people who belong to one racial, political, cultural or religious group.
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Famine | a time when there is so little food that many people starve.
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Starvation | a state of extreme hunger resulting from lack of essential nutrients over a prolonged period.
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Green belt | an area defined by Act of Parliament which surrounds a conurbation. It is very difficult to obtain permission for development on green belt. This act stops the sprawl of conurbations.
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Conurbation | one large, more or less continuous area created as a city grows and spreads to absorb other cities, towns and villages in the surrounding area.
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Infilling | the use of open spaces within a conurbation to build new housing or services, often close to where a green belt restricts outward growth.
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Brownfield sites | sites that have been built on before but that have come available for new building because of demolition or redundancy of the old buildings.
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Social welfare | the well-being of communities. It refers to the access that groups of people, or individuals, have to job opportunities, housing, health care, education, an unpolluted environment, a safe environment and freedom to practise one's culture, religion, etc.
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Created by:
apeploe
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