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.
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Food
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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 and pesticides increase crop yields and reduce crops lost to pests.
Health Care
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Advances in health care technology and medicine allow fewer individuals to die from injuries and illnesses. Health care is so effective that euthanasia and the Hippocratic Oath are sometimes debated.
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Sanitation
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Better sanitation has lead to fewer diseases being spread through water and contaminated surfaces.
Vaccines
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Vaccines have lead to the elimination of many diseases such as measles and tuberculosis. Measles and tuberculosis were once leading causes of death.
Standard of Living and Fertility
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Standard of living has a complicated effect on population growth. Areas with low standards of living have high birth rates, but also have high infant mortality rates. As the standard of living increases, better medical care leads to lower infant mortality rates and fertility medications increase a woman's chance for pregnancy. But statistically, societies with high standards of living tend to stabilize and eventually decline.
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Comments
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This project is giving by my teacher and his name is Navin Jha From Gaur, Rautahat.. Meet (Visit) the society of your village or city in which there is high population. Write the causes effect and ways of Controlling of population of that society.
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how can we controlling the world population?
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the world now is over populated,, we need to control or that's the big problems of our society ,
