The world’s population has grown rapidly over the past 100 years. This is due mainly to improved food supplies and better medical knowledge. In third world countries there is a ‘population explosion’. This has left the world’s population at over 6,800,000,000. If the population continues to grow this rapidly then it will cause many problems for the world.
Birth Rate- This is the amount of people born per year, per thousand.
Death Rate– This is the amount of people that die per year, per thousand.
Natural change- This is the difference between the two. There will either be a natural increase or a natural decrease.