Day 13

Population and Migration:

- Population and Settlement PowerPoint

• over seven billion people on the planet right now.
• increasing by over 73 million per year
• 90% of this population growth takes place in he developing countries of Africa, South and East Africa, Latin America.

• In 1804 America's population reached 1 million for the first time; it took 10,000+ years to get to a million
• In 1927: another million in only 123 years
• 1960: next million in only 33 years
• 1974: next million in only 14 years
• 1987: next million in only 13 years
• 1999: next million in only 12 years
• 2011: next million in only 12 years again

Life Expectancy:
- the average number of years to be lived by a group of people born in the same year.