Population & Settlement

So today we started a new chapter on settlement. We began class with prayer and pledge because we had human geography first mod. We got new key issues for the chapter; 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 health threats? We learned how there are 7.5 billion people living on Earth and that that's increasing by 73 million per year (200,000 a day - 8,377 per hour - 149 per minute - 2.5 per second). We learned that 90% of Earth's population growth takes place in the developing countries such as Africa, South and East Asia, and Latin America. We saw that in 1804 the population reached its first billion where we later came two billion people in 1927, three billion in 1960, four billion in 1974, five billion in 1987, six billion in 1999, and seven billion in 2011.