The silver price is based in troy ounces and that means we need to multiply the metal price by .0321507466 to make the conversion to grams. $7.1507 is the rounded silver value for the 1916-1947 silver Walking Liberty half dollar on August 17, 2016.
fixation noun (INTEREST) âº [ 1  C ] the state of being unable to stop thinking about something or someone, or an unnaturally strong interest in something or someone: âº [ 2  U ] specialized medical the process of attaching or sewing something firmly in place.
Nitrogen fixation is the natural process by which atmospheric nitrogen (N2) is converted into ammonia (NH3), or nitrate forms. This step is important for the continuation of ecosystems because plants depend on nitrates and nitrites, and nitrogen gas is not a usable form for plants to intake.