Week 1 Sci/256 Essay example

638 Words Nov 30th, 2012 3 Pages
University of Phoenix Material

Environmental Science Worksheet

Answer the following questions in at least 100 words. The answers are found in Ch. 1–4 of Environmental Science.

1. What would you include in a brief summary on the history of the environmental movement?

In the first two centuries of U.S. history was a widespread environmental destruction. In the 19th century there were four people who played a key role in protecting the environment; Henry Thoreau, John Audubon, George Marsh, and President Theodore Roosevelt. The modern environmental movement was in the 19th century Europe and North America as they exposed the cost of environmental negligence. Rachel Carson a Marie Biologist wrote a book in the 1960’s
…show more content…
Zero population growth meaning that even though there are births there are just as many deaths making the number of people on earth or population will remain the same.

3. 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?

In developed countries the birth and infant mortality rate is lower than developing countries. With the developing countries having a higher birth rate they also have a higher infant mortality rate. It is difficult to predict the earth’s population growth because of the different stages a country might be in, or how fast they move from one to another. Stage one is preindustrial, this is when the birth rate is high but so is the death rate so the population is low. Stage two is the transitional stage where the birth rate is still high but health care has gotten better so the death rate has decreased and the population is skyrocketing. Stage three is the industrial stage this is when the birth rate is still increasing even though the death rate has stayed the same making the population still increase. In the final stage postindustrial the birth rates are very low because of birth control and people desiring smaller families. The death rate is still how and the population slowly

More about Week 1 Sci/256 Essay example