SHOPPING" Replace coffee with this healthy drink that packs between 20 to 40 milligrams of caffeine. Mix it in with water and add in your favorite flavorings for an afternoon pick-me-up.

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Molybdenum (Mo) and tungsten (W), which have similar chemistry, are present at roughly the same concentration in the earth’s continental crust, and both are present in oxic systems as oxoanions, ...