Chemistry is the science that studies the composition, structure and properties of matter and the changes that occur during chemical reactions. Answer a few questions to see how good you really are in Chemistry?
In Microsoft Excel you can use formating tools like colors, text alignment, font styles and many more to make your sheets look nicer and more transparent.
The Jungle Book author Rudyard Kipling did explain how the leopard got its spots and camel its hump, but he never answered how the zebra got its stripes.