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Hace 1 día · 30 Rock is an American television comedy series created by Tina Fey, which aired on NBC.The series takes place behind the scenes of a fictional live sketch comedy series, also airing on NBC; the name "30 Rock" refers to the address of the GE Building, where NBC Studios is located (30 Rockefeller Plaza). The series has an ensemble cast consisting of 14 regular cast members: Tina Fey, Alec ...
Hace 1 día · Oxygen is a chemical element; it has symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. Oxygen is the most abundant element in Earth's crust, and after hydrogen and helium, it ...
