Question: Concern wind power, which has been used for centuries to propel ships and mill grain. Modern wind power is obtained from windmills that convert wind
Concern wind power, which has been used for centuries to propel ships and mill grain. Modern wind power is obtained from windmills that convert wind energy into electricity. Figure 1.74 shows the annual percent growth in US wind power consumption between 2009 and 2014.

(a) According to Figure 1.74, during what single year(s), if any, did the US consumption of wind power energy increase by at least 25%? Decrease by at least 25%?
(b) True or false: The US consumption of wind power energy doubled from 2008 to 2011?
percent growth over previous year 30 20 10 2010 2012 2014 year
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a The US consumption of wind power energy increased by at least 25 in 2009 2010 and in 2011 relative ... View full answer
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