Given the following passage "A CD is read by focusing a 780 nm wavelength (near infrared) semiconductor laser housed within the CD player, through the bottom of the polycarbonate layer. The change in height between pits and lands results in a difference in the way the light is reflected. By measuring the intensity change with a photodiode, the data can be read from the disc. In order to accommodate the spiral pattern of data, the semiconductor laser is placed on a swing arm within the disc tray of any CD player. This swing arm allows the laser to read information from the centre to the edge of a disc, without having to interrupt the spinning of the disc itself.", answer the following question. Note that the answer is present within the text. Question: How is the information stored on the disc?
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Answer: spiral pattern

Given the following passage "The Lutherans were the first Protestant Church offering a dialogue to the Catholic Church in September 1964 in Reykjavik, Iceland. It resulted in joint study groups of several issues. The dialogue with the Methodist Church began October 1965, after its representatives officially applauded remarkable changes, friendship and cooperation of the past five years. The Reformed Churches entered four years later into a dialogue with the Catholic Church. The President of the Lutheran World Federation and member of the central committee of the World Council of Churches Fredrik A. Schiotz stated during the 450th anniversary of the Reformation, that earlier commemorations were viewed almost as a triumph. Reformation should be celebrated as a thanksgiving to God, his truth and his renewed life. He welcomed the announcement of Pope Paul VI to celebrate the 1900th anniversary of the death of the Apostle Peter and Apostle Paul, and promised the participation and cooperation in the festivities.", answer the following question. Note that the answer is present within the text. Question: What were the Lutherans?
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Answer: Protestant

Given the following passage "CDs are susceptible to damage during handling and from environmental exposure. Pits are much closer to the label side of a disc, enabling defects and contaminants on the clear side to be out of focus during playback. Consequently, CDs are more likely to suffer damage on the label side of the disc. Scratches on the clear side can be repaired by refilling them with similar refractive plastic or by careful polishing. The edges of CDs are sometimes incompletely sealed, allowing gases and liquids to corrode the metal reflective layer and to interfere with the focus of the laser on the pits. The fungus Geotrichum candidum, found in Belize, has been found to consume the polycarbonate plastic and aluminium found in CDs.", answer the following question. Note that the answer is present within the text. Question: How could water damage a CD specifically?
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Answer:
gases and liquids to corrode the metal reflective layer and to interfere with the focus of the laser on the pits