Thursday, October 21, 2010

Chapter 7 Homework

Chapter 7, Section 1
1. How has the development of a postindustrial economy in the United States and Canada affected where and how people live?
Answer:
The development of postindustrial economy in the United States and Canada let people have more freedom in choosing where to live.  Postindustrial jobs are jobs in government, educating, health care, and banking which are often located in areas between cities and suburbs all of the countries. The housing for people working in those jobs is not limited by location. The growth of postindustrial economies has led people to have more freedom in where they live
2. How are the economies of the United States and Canada interdependent with each other and with those in other parts of the world?
Answer:
The United States and Canada both export and import goods.  Canada exports goods such as timber to parts of the world that lack timber.  In exchange, those countries trade resources that Canada doesn't have to Canada.  The United States takes in a lot of imports, ranging from electronics to food.  The United States exports air crafts, aerospace equipment, and food to other countries in exchange for the goods.
Creative Writing: Write a paragraph about the economies of the United States and Canada that explains how the terms market economy, postindustrial economy, and global economy are related.
Answer:
The market economies in both the United States and Canada allow the people to make decisions about what kind of business they want to own, what they want to do, and how much they profit.  This leads to some people creating businesses that include more high-tech and service jobs which leads into postindustrial economies.  The postindustrial economies provide service jobs and technology jobs in which people help others with technology problems.  People from all around the world seek help from these people, making the postindustrial economies into global economies.
Chapter 7, Section 2
1. What are examples of three or more ways that the United States and Canada could manage their natural resources more responsibly?
Answer:
The countries can start managing their natural resources more responsibly by first stop cutting down so many trees and burning wildlife to make room for more people.  How about we plant more trees and stop expanding urban areas?  We can build our cities upward instead of horizontally and we'll take up less land space and leave more room for forests.  Another way to help the environment and conserve the fossil fuels is to use alternative forms of energy such as electrical energy, hydrogen fuel, and wind power.  the last way we can help conserve nature's resources is to stop killing the natural predators.  Without predators, herbivores will overpopulate and eat away all of their food resources.  Once the food runs out, the herbivores will start dying and their predators will have even less prey.  If we would stop driving out and killing animals, then the environments might have a chance to recover.
2. What are the causes and effects of pollution in the region?
Answer:
the pollution gas of sulfur dioxide and nitrogen oxide that come from factories can cause acid rain.  Acid rain is basically liquid rain that can poison water and timber as well as burn skin and kill animals.  Another affect of air pollution is smog.  Smog kill plants and animals and greatly damages people's eyes, throats, and lungs.  Industrial wastes such as fertilizers and pesticides are often dumped in rivers, streams, or leak into ground water.  these toxic chemicals contaminate water and poison all wildlife, whether it be animals, fish, plants, or humans, that drink it.  the water pollution also kill natural alge.  This causes all the fish to die.  Another affect of pollution is immense algae growth which will turn a lake into a marsh and gradually into a dry land.
Creative Writing: The 800-mile (1,300 km) Trans-Alaska Pipeline carries oil from Prudhoe Bay, on the Arctic Ocean, to the port of Valdez, on the Gulf of Alaska. Oil travels through the pipeline at a temperature of over 120° F (80° C). For most of its length, the pipeline is elevated above permafrost to keep the permafrost from thawing. In places the oil is carried in buried, refrigerated pipes. Describe some of the consequences the melting of Arctic permafrost may have on the pipeline over the next 25 years
Answer:
The melting of the Artic permafrost will make the supports for the pipeline loose.  Eventually the permafrost will either melt completely and collapse, which shall break the pipeline and then no oil shall be transported between Prudhoe bay to the port of Valdez.

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