Ключевые слова: 60s, academic, age, aged, caucasian, class, classmate, classroom, college, course, desk, disabled, discuss, eco, education, elder, elderly, energy, environment, group, happy, inclusion, indoor, integration, knowledge, learn, learning, lecture, lesson, man, mature, old, pensioner, person, retired, retirement, school, senior, student, study, studying, sustainable, teacher, third, turbine, university, wheelchair, wind, woman, women,