The three basic shapes of population pyramids are shaped in a Christmas tree, a box, or a cup. The Christmas tree shows growth rates are slow and it most likely means they are developing nations including Africa. Christmas tree graphs show a high birth rate and a short life expectancy. A box shaped graph shows low infant mortality and is a developed nation. Since everything is most likely equal in a box graph, it means there is a slow population growth and long life expectancy. The final common shape is the cup and it is known for having an extremely low birth rate. They have a shrinking population which can cause damage for the future jobs and professions that will be needed. Cup graphs also are developed nations with long life expectancies.
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