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Q: . Compare predictions for human population growth in developed countries versus developing countries. Why is it difficult to predict the growth of Earth’s human population? Why should population
growth be predicted?”? What will happen if there is exponential human growth?
A: One big reason is that developing countries tend to have much faster population growth than in developed countries. [ Developing countries have poor access to birth control, often practice religions which prohibit birth control and value large families, and often have a lot of farmers, who benefit from having lots of children to help them work the land and take care of them in their old
age. Developed countries, on the other hand, tend to value higher education and a high standard of living. This means people marry late, and it costs a lot of money to raise children in the city. They also tend to have better access to birth control and fewer traditional injunctions against it. It's hard to project population growth, first of all because of natural calamities like disease and famine that can severely limit population growth. It's also hard to predict because social factors like birth control access and job access can encourage people to have larger or smaller families. So it's very hard to make global population projects because we don't know what factors might cause the growth rate to change. The world is always changing. Technological advances help us live longer, but disasters such as earthquakes and hurricanes can lower our population. Humans are all over Earth, so it's hard to accurately predict our population. If the current population growth rate on our planet continues at exponential growth rate it means that in less than 2,5 millenniums there will be one person per each square meter of dry land. Is this going to happen? It cannot happen, due to the carrying capacity of our planet. Simply, the exponential population growth will finally slow down, or even decline much sooner. Simply, the exponential function is too demanding in every aspect. ]
Expert answered|Shey091808|Points 375|
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Asked 9/17/2012 9:52:56 PM
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