There are two primary factors to be considered in the evaluation of biomass fuels: Fuel supply, including the total quantities available, the stability of the supply or of the industry generating the fuel, and competitive uses or markets for the fuel.
Graffiti (/É¡rÉËfiËti/ ; [É¡rafËfiËti] ; plural of graffito : a graffito, but these graffiti) are writing or drawings that have been scribbled, scratched, or painted illicitly on a wall or other surface, often in a public place.he term graffiti referred to the inscriptions, figure drawings, and such, found on the walls of ancient sepulchres or ruins, as in the Catacombs of Rome or at Pompeii. Use of the word has evolved to include any graphics applied to surfaces in a manner that constitutes vandalism.
The terms urban art, guerrilla art, post-graffiti and neo-graffiti are also sometimes used when referring to artwork created in these contexts. Traditional spray-painted graffiti artwork itself is often included in this category, excluding territorial graffiti or pure vandalism. Street art is often motivated by a preference on the part of the artist to communicate directly with the public at large, free from perceived confines of the formal art world.