How to sort garbage correctly and why do we need it? An exciting eco-quiz for students of the Children's Ecological and Biological Center of Naberezhnye Chelny was conducted by employees of the Kama Territorial Administration of the Ministry of Ecology of the Republic of Tatarstan and representatives of Grint LLC. Involving children in the game and making riddles, the experts told the children about the damage to the environment caused by household waste and how to reuse it: "If the waste is properly sorted and collected separately paper, glass, plastic, then a lot can be used again, for the benefit of people, and not to the detriment of the environment."