Population growth

• Birth rate is the average number of live births per 1000 people per year
• Death rate is the average number of deaths per 1000 people per year
• Growth rate = birth rate - death rate
• Life expectancy is the average number of years a person is expected to live
• Infant mortality rate: The number of deaths of children under one year of age per 1,000 per year
• Urbanisation is the proportion of people living in towns or cities
• A megacity has over 10 million people
• Pull factors attract people to a place, while push factors repel people from a place