SCI- Quiz 1 - Mar 10, 2011 SCI 220 Term 4 Quiz 1 Please...

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Mar 10, 2011 SCI 220 – Term 4 Quiz 1 Please provide a short paragraph answer to each of the following questions. 1. What has been one of the advantages of having more efficient and available energy sources over the last 200 years? Over the last 200 years, people have become more and more dependent on energy that they dig out of the ground and the technology. In the 1700’s, almost all our energy came from wind, water, firewood, or muscle power. The wind powered our windmills and sailing ships. Water powered our water wheels. Firewood did our cooking and heated our homes. Muscle power (labor or animal) did a lot of thing. All energy sources came from the sun, since solar energy drove wind and rain, grew trees, and grew crops to nourish our animals and ourselves. All energy sources were also renewable, for example, wind kept blowing, rivers kept flowing, and trees and crops kept growing. Early America, the primary source of fuel was wood. After the Civil War, coal became the greater prominence and the fuel of choice to power the railroad. True renewable energy sources are energy supplies that are refilled by natural processes. All renewable energy comes from the sun and the sun directly (as in solar heating systems) or indirectly (as in hydroelectric power, wind power, and power from biomass fuels). Renewable energy supplies can become disappear if we use them faster than they become
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This note was uploaded on 07/07/2011 for the course SCI 201 taught by Professor John during the Spring '11 term at Southern New Hampshire University.

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SCI- Quiz 1 - Mar 10, 2011 SCI 220 Term 4 Quiz 1 Please...

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