Monday, September 29, 2014

Population Pyramids

In class, we watched a video about populations of different countries and how they increase and decrease. It all depends on the reproductive system of each country and it will determine if the population is growing faster or slower. There were some questions we had to answer on our class blog and the first answer to number one would be A: over 10 million. The second answer would be that the pyramid shape becomes inverted when a country's population growth slows down. The third answer would be that the Population Pyramid video does NOT give information on the death rates. The last answer would be that North America would be one of the fast-growth pyramids. The whole idea of all this is that the population changes pretty much every second. The death rate changes and so does the birth rate. Babies can be born almost every second in the world and people can die any second in the world. It shows how fast the population changes and how it gets better or worse. The overall population in the world is over 7 billion and it keeps changing right this second. I am not really sure when it was 6 billion or when it wasn't over 7 billion, but I think it's been 7 billion for many years and it just keeps going up. The country that has the largest population in the world is China which isn't surprising because China is a huge country and it keeps developing every day. The second highest is India which also makes sense because it is a very large country and even though it's not any where as close as China to be developed, it's population is very big. The third country is the US which I always thought the US had way more people than 323 million, but apparently it is much smaller than China and India. The population pyramids show many things and it tells you why the population changes without even having any words. You can just tell by the numbers going up or down to know how it changes and why.

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