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Earth ScienceIdentifying Minerals
Minerals are classified on the basis of their chemical composition, which is expressed in their...
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BiologyThe Piltdown Hoax
The Piltdown Man was once hailed as the "missing link" in the evolution of apes...
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Earth ScienceWeather, Fronts, and Forecasts
Before you go out for the day, you probably check the weather to help determine...
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