On April 7, 2023, the Department of Chemical Technology and Ecology held a pre-defense of the theses of the 4th year students of the ЕP “6B05201 - Ecology”, "6B11201 - Life safety and environmental protection", "6B05301 - Chemistry".  Each presentation was accompanied by a presentation in which the results of scientific research were presented. The teachers present asked questions, expressed their recommendations and advice on how to eliminate shortcomings.