Keywords
60's, 60-64 years, 60-65, 60-70, 60s, 65-70, 70's, 70-75, 70-80, 70s, 75-80, adult, advancement, african, african american, african ethnicity, african-american, afro american, afro-american, analysing, analyzing, assessment, black, careful, clean suit, clip board, clip-board, clipboard, color, color image, colour, commitment, concentrating, concentration, conservatory, danger, day, daylight, daytime, dedication, defending, developing, development, discovery, elderly, endangering, examining, experiment, expertise, fellow, future, futuristic, genetic modification, gentleman, greenhouse, growing, growth, guy, hazard, hazardous, hazmat, hazmat suit, head & shoulders, head and shoulders, holding, horizontal, human, human being, indoor, indoors, inside, jeopardizing, jeopardy, low angle, low angle view, male, man, maturing, netting, notation, noting, observation, of african descent, old, one, one person, paperwork, people, perilous, person, photography, plant, protection, protective clothing, protective suit, r&d, research, research & development, research and development, retired, retirement, risk, risk-taking, safeguard, safety, science, scientist, scrutinizing, security, senior, senior adult, senior citizen, seventies, seventy, side view, sixties, sixty, specialist, specimen, sterile, technician, technology, treacherous, vigilance, watching, work, worker, working, 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, bld194036