Many countries around the world are trying to reduce their dependence on oil [?] Brazil where bio ethanol provides about [?]% of automobile fuel. But the process of making bio ethanol by fermenting sugar cane is [?], inefficient and expensive.
Now a team of researchers at Brazil's State University of Campinas say they have found a way of [?] the production process by using extremely low frequency magnetic [?]. The team attached two electromagnetic generators to a vat [?] a mixture of yeast and sugar cane. They found that the production of ethanol increased by [?]% and it speeded up the time required to produce the [?] by two hours.
The scientists involved are [?] as to how exactly the process works but they believe that the [?] stimulate the [?] and make it work faster and more intensely. They believe their discovery can be easily implemented at an industrial scale.
Matt McGrath, BBC

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