Everyday Science
DNA structure discovered in _________?
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Grams in pound?
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Silicon is an example of _________?
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How many layers does the earth have?
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The major ingredient of leather is__________________?
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Glucose syrup is made from__________?
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Sound travels about ___________times faster in water than in air.
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Electrostatic precipitator controls?
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Cotyledons are very important because they ________?
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