Ключевые слова: aluminum, awareness, batteries, black background, blackboard, blue, bottle, brown, bushing, cardboard, cleaning, copy space, crumpled paper, dagger, design, environment, garbage, glass, harm to nature, help, humanity, iron, jar, light bulb, matches, natural, paper, plastic, plastic cup, protection, recycling, salvation, separation of rubbish, throwing out rubbish, tin, toilet paper, tube, wooden,