PollutionPollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light). Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants. Although environmental pollution can be caused by natural events, the word pollution generally implies that the contaminants have an anthropogenic source – that is, a source created by human activities, such as manufacturing, extractive industries, poor waste management, transportation or agriculture.
National and Kapodistrian University of AthensThe National and Kapodistrian University of Athens (NKUA; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών, Ethnikó ke Kapodistriakó Panepistímio Athinón), usually referred to simply as the University of Athens (UoA), is a public university in Zografou, a suburban town in the Athens agglomeration, Greece. It has been in continuous operation since its establishment in 1837 and is the oldest higher education institution of the modern Greek state and the first contemporary university in both the Balkan Peninsula and the Eastern Mediterranean.
