Keywords
20-25 years, analyzing, blue sky, brown hair, color image, conical flask, day, ecology, erlenmeyer flasks, focus on foreground, front view, hazardous waste, holding up, looking, man, obscured face, observing, one person, one young man only, outdoors, polluted, pollution, pollution mask, precaution, protection, protective glasses, protective suit, research, rubber gloves, safety, sample, scientist, studying, sunny, toxicity, waist up, water, young adult, young man, 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, paa542000009