What Causes Population Growth?

Answer

There are a number of factors that have led population growth. Some of these factors include food security, advanced health care, better sanitation which has lead to fewer diseases, and improved living standards and fertility. In the 1800s, the world had about one billion people but as of 2009, the world population has reached about seven billion.
Q&A Related to "What Causes Population Growth"
Improved agricultural practices have lead to fewer famines, allowing farmers to sustain much larger numbers of people. Machinery reduces manpower needed to farm while improved fertilizers
http://www.ehow.com/facts_5290617_causes-populatio...
Fewer deaths and more births.
http://wiki.answers.com/Q/What_caused_a_growth_in_...
Increases in wealth and the resulting moves towards less efficient foods (meat instead of plants) are closely tied to increases in the demand curve. Ian McCullough's answer describes
http://www.quora.com/What-causes-food-demand-to-in...
Population growth began to decrease slowly in the early 19th century
http://www.chacha.com/question/what-causes-the-pop...
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Ask.com Answer for: what causes population growth
What Causes Population Growth?
In the 1800s, there was approximately one billion people in the world. As of 2009, the world population has reached nearly seven billion. This increase in population growth is attributed to factors that increase fertility and reduce death.... More »
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Source: www.ehow.com
Population growth can be caused by an increase in birth rate at the same time as a decrease in death rate. The population has grown significantly throughout history. One of the main problems caused by population growth is a lack of resources.
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