http://www.articleheaven.net en-us editorial@articlealley.com Federal tax credit for energy conservation can be availed if you purchase any energy efficient product or a renewable energy source system for your home. Though energy star qualifies many products as energy efficient, it should be noted that not all produ... http://www.articleheaven.net/federal-tax-credits-for-energy-conservation-2021198.html 10th February 2011 Coal is a sedimentary organic rock, which contains a lot of carbon. This ranges between 40 and 90 percent carbon. The range is solely based on weight. Ancient plants and animals, which get accumulated in moist peat bogs, form coal. When plants die off in ... http://www.articleheaven.net/how-does-coal-affect-the-environment-1800065.html 19th October 2010 Photography - the process or art of producing images of objects on sensitized surfaces by the chemical action of light or of other forms of radiant energy, as x-rays, gamma rays, or cosmic rays. Button - A generally disk-shaped fastener used to join tw... http://www.articleheaven.net/famous-places-for-taking-as-picture-to-use-in-a-photo-button-1786662.html 12th October 2010