One cause of suburbanization in the United States during the 1920s was increased family income, due to the boom that took place in the American economy right before the Great Depression hit in 1929.
The elements are:
<span>Climate, includes things such as temperature and humidity
water, includes liquid substance that exist on both upper and lower ground
landforms, which affects the formation of mountain and hills
soil, which became a medium for plants to grow
energy and mineral resources, where plants could get their nutrients
vegetation, includes all type of plants on the earth
wildlife, includes all type of animals on the earth</span>
The Second World War was the event that shook the world in those years. France was a country involved in the conflict and the forces of the axis caused many deaths between 1939 and 1945. Many of those deaths were men, regardless of age. For this reason, there is clearly a general decline of men in the pyramid population of France in the 50s.
