Original answer: slot I believe that the US Naval Observatory is the official time keeper of the United States.The rest of the story: The USNO is one half of the equ
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Chemistry
+1
What is bouyance?
Asked by Wiki User
Buoyancy is the ability of an object to float in a liquid or gas. It is determined by the difference in density between the object and the fluid it is in, with
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Chemistry
+3
Why does Pepto-Bismol turn black when you mix it with contaminated water?
Asked by Wiki User
Pepto-Bismol is made with bismuth subsalicylate, which can react with sulfur compounds present in contaminated water to form bismuth sulfide. This chemical reac
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Units of Measure
+3
Why the sea water is blue?
