Ключевые слова: agriculture, bio, biology, blackboard, bottle, building, caucasian, class, classroom, concept, desk, development, earth, eco, ecology, engineer, environment, environmental, female, flask, gardening, hand, health, indoor, industrial, microscope, monstera, nature, plant, planting, scales, school, search, smile, soil, studying, survey, surveying, teacher, teaching, technology, test, test tube, tube, university, vegetable, water, woman, worker, young,