Keywords
30-34 years, 65-69 years, authority, bologna, boss, caucasian, co-worker, color image, day, drill, drilling, environment, environmental issues, foreman, fuel and power generation, full length, garbage, hard-hat, heap, high angle view, horizontal, industry, italy, landfill, man, managing, methane gas, mid adult, mid adult men, nature, outdoors, people, photography, pile, pollution, protection, protective workwear, rear view, reflector-vest, safety, senior adult, senior men, standing, supervisor, technology, together, two people, worker, 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, u20449681