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1
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engine used to produce electricity with the wind
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3
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it's the opposite of optional
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4
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those who works with vegetables and sometimes animals
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5
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this is about the weather and it has been a subject of debate for many years now
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6
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when we throw to much food, we ..... food
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7
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not being careful enough
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2
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using it is responsible for the environment
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6
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the movement of the air around us
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