Keywords
anthropomorphic face, black, block, chunk, close-up, coal, color image, colored background, concepts, earth, electricity, energy, environmental conservation, fossil fuel, fuel and power generation, geology, ideas, indoors, industry, large, mining, nobody, one object, outlet, photography, pollution, power, red, rock, studio shot, superstock, vertical, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, 1422r-1039, 1422r 1039, 1422r1039