Population.
Our first unit this semester will be about population.Today we also took a quiz on population. 7 billion people live in the world. 312 million people live in the USA. 3 million people live in Iowa. 12 thousand live in Shelby Country, and 5,000 for Harlan. Natural Increase means the different between births and deaths. Its how much more births we have then deaths. Each year we are growing about 80 million. Month 6 thousand are added. Each day 215 thousand are added. Every minuite 149 are added. Every second 2.5 are added.
Define birth rate- How many people are born per one thousand population.
Define ferility rate- how many babies each woman will have in there lifetime.
Define death rate- How many people die per 1,000 population.
Define population growth rate- The rate of which the population grows. Either if it is speeding up or slowing down.
Define rate of natural increase- How many people are added to the world.
Define population density- How many people live in one area.
80 million people are added to earth each year.
Most populated cities.
Tokyo
Guangzhou
Seoul
Delhi
Mumbai
Mexico City
New York
Sao Paulo
Manila
Shanghai
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