Population - its all about the people...
The map above show the global population density. The darker or more concentrated the red colour the more people who live in one square mile.While India and China’s economies are in full bloom, in terms of population density both places are seeing red. As it stands, India comprises a staggering 17% of the world’s population and sports a population density of 964 people per square mile. For its part, a whopping 1.3 billion people and counting reside within Chinese borders, all of whom contribute to its density of 363 people per square mile.
Population pyramids - not just used by the Egyptians
The image above shows the population pyramid for Chad. A pyramid shows the percentage of males and females in a country. Each layer represents the percentage of people in each group. This is a pyramid showing a poor country. I has a wide base as lots of children are being born. There is a narrow top meaning there are very few old people. This could because they have poor healthcare. You can see from the pyramid that there are very few people of working age.
Factors which affect the size of a countries population
The problems of overpopulation
Overpopulation means too many people living in a country/world for the resources to help them live.
Food & water shortages
Poor air quality
Oil & gas run out
Pollution in oceans, rivers and on land
Increase of crime