“…There are four environmentally friendly behaviors, namely how often to bring food from home, how often to bring water bottles (not bottles) from home, how often to put trash in its place, and how often to separate organic and inorganic waste (Bancheva, 2019;Julinová, Vaňharová, & Jurča, 2018). Of the four behaviors, putting rubbish in place gets the highest value, followed by bringing his own drinking water bottle from home, bringing his own food from home, and the low one is sorting out organic and inorganic waste (O'Neill, 2017;Seredkin, Zabolotsky, & Jeffress, 2016).…”