Keywords
2, 30's, 30-34 years, 30-35, 30-40, 30s, 35-40, 40's, 40-45, 40-50, 40s, 45-49 years, 45-50, 50-55, 50-60, 55-60, adult, african, african american, african ethnicity, african-american, afro american, afro-american, arm, arms raised, associate, beaker, black, checking, chemical, chemistry, close up, close-up, closeup, co-worker, colleague, color, color image, colour, considering, contemplation, cooperation, curiosity, curious, equipment, examining, experiment, eyeing, fellow, female, fifties, fifty, forties, forty, gal, gentleman, guy, head & shoulders, head and shoulders, horizontal, human, human being, indoor, indoors, inside, interest, lab coat, lady, learning, lifter, lifting, liquid, looking, male, man, mature adult, mature men, mid adult, mid adult women, mid life, middle age, middle aged, middle-age, middle-aged, occupation, of african descent, people, person, photography, picking up, pondering, processing plant, protection, protective eyewear, r&d, raised, raising, research & development, research and development, safety, science, scientist, scrutinizing, security, seeing, serious, seriousness, smile, smiling, solemn, somber, standing, strategy, studying, team, teamwork, testing, thinker, thinking, thirties, thirty, two, two people, viewing, wet, white coat, woman, women, 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, bld188831