NFPA Diamond 704 3-3-3 OXY Symbol Sign, Vector Illustration,... Ammonium nitrate, NH4NO3 molecule. It is ammonium salt of nitric acid. Used to make fertilizers and explosives, in producing antibiotics ...

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This is a locator map for Lebanon with its capital, Beirut. (AP Photo) ...

Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China ...

How do these journalists craft arguments to compel readers? Pose questions for Margaret Renkl, a contributing Opinion writer for The New York Times, by March 20. By The Learning Network Some ...