Blog Post #23 -Population Growth (start of unit 3)-

     Today we started unit 3. This unit is all on population. The key ideas are: Where is the world's population distributed?, Why is global population increasing?, Why does population growth vary among regions?, and Why do some regions face heath threats?. There are over 7.5 billion people on the planet right now. It increases over 73 million per year. 200,000 people are born per day in the world. 8,377 people are born per day in the United States. 149 people are born per minute and 2.5 are born per second. These are pretty accurate statistics. We then filled out a chart that showed how many years were between the times the world hit another billion people. The year gap has been decreasing. The last thing we did was talk about life expectancy. Life expectancy is the average number of years to be lived by a group of people born in the same year. The highest life expectancy is in Monaco. The United States is #42 and the country with the lowest life expectancy is Chad.