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...[[List of the largest hydroelectric power stations|largest hydro-electric power station]] in the world]] ...approximately 20% of the world's electricity, and accounted for about 88% of electricity from renewable sources.<ref name="REN21-2006">[http://www.ren21

...ropagation|propagation]], the combustible material present, and the effect of weather on the fire.<ref name=UToronto /> ...cial effects on wilderness areas. Some plant species depend on the effects of fire for growth and reproduction,<ref name=NOVA /> although large wildfires