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Unformatted text preview: about our environment and our future, they encourage people to support and know the benefit of it, so nowadays we can use the wind power and it will provide 20 percent of U.S. power by 2020. Although it is very expensive to do such revolution, but I think it will provide all the power we need in one day, and become worldwide because as I know, Hong Kong do not have that kind of support using wind power. Wind is natural resource too, but it is not a limited one, so we can use this advantage to help saving up more resources and protecting our nature....
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This note was uploaded on 09/18/2009 for the course BIO 120 taught by Professor Staff during the Fall '07 term at USC.
- Fall '07