Keywords
18-19 years, 20's, 20-24 years, 20-25, 20-30, 20s, 25-30, 40's, 40-45, 40-50, 40s, 45-50, 50-54 years, 50-55, 50-60, 55-60, adult, african-american ethnicity, aiding, asian, asian ethnicity, assisting, atom, caucasian, chinese, chinese ethnicity, class, classmate, classroom, college, color, color image, colour, confidence, confident, educating, education, educator, examining, far eastern, fellow, female, fifties, fifty, focus on background, forties, forty, gal, gentleman, group, guy, helping, hispanic, horizontal, human, human being, indoor, indoors, information, inside, instructing, instruction, intelligence, knowledge, lady, latin, latin american, latin american and hispanic ethnicity, latina, learning, looking down, male, man, mature adult, mature women, medium group of people, mentor, mid life, middle age, middle aged, middle-age, middle-aged, mixed race person, model, molecular model, molecule, multi-ethnic group, multicultural, multiculturalism, oriental, particle, people, person, photography, professor, pupil, school, schoolmate, schoolroom, science, seated, sitting, student, studying, teacher, teaching, training, tutor, tutoring, twenties, twenty, waist up, waist-up, western european, wisdom, woman, women, young adult, young men, young 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, blm016447