population

• Population Growth Factors


  Biological Factors, Demographic Factors, Economic Factors, Social & Cultural Factors, Government Policies & Programs
• the world's population has grown from 1 billion to 7.8 billion since 1900
• birth rate is falling as people become more educated and have access to better healthcare
• in 2050, it will be around 9.6 billion
• population density is the number of people per unit area
• death rates are also decreasing due to improved medical care and living conditions
• population growth is highest in developing countries with high birth rates and low death rates
• population growth can be measured by calculating birth and death rates per thousand people.
• natural increase = birth rate - death rate
• increased life expectancy means that the proportion of elderly people in society is increasing
• What is a line on a graph?


  A line on a graph is a straight, continuous path that extends infinitely in both directions.