An anion is an ionic species having a negative charge. They are atoms that have gained electrons. Anions are one of the two types of ions. The other type is called a cation. Anions are attracted to the anode, while cations are attracted to the cathode. The concept of an anion is important in the corrosion industry because certain anions facilitate corrosion.
Greece is home to a series of ancient volcanoes, including those on the islands of Kos, Methana, Milos, Nisyros, Poros and Santorini.reece is home to a series of ancient volcanoes, including those on the islands of Kos, Methana, Milos, Nisyros, Poros and Santorini.
There were dozens of natural and artificial lakes in Greece, as well as many lagoons. Most lakes are freshwater and have formed mainly far from the coastlines as a result of tectonic or volcanic forces, or from the melting of glaciers.