Problem: The basic equipment or kit players are required to wear includes a shirt, shorts, socks, footwear and adequate shin guards. An athletic supporter and protective cup is highly recommended for male players by medical experts and professionals. Headgear is not a required piece of basic equipment, but players today may choose to wear it to protect themselves from head injury. Players are forbidden to wear or use anything that is dangerous to themselves or another player, such as jewellery or watches. The goalkeeper must wear clothing that is easily distinguishable from that worn by the other players and the match officials.
What is highly recommended by medical experts for male players?
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Answer: An athletic supporter and protective cup

Problem: A solar chimney (or thermal chimney, in this context) is a passive solar ventilation system composed of a vertical shaft connecting the interior and exterior of a building. As the chimney warms, the air inside is heated causing an updraft that pulls air through the building. Performance can be improved by using glazing and thermal mass materials in a way that mimics greenhouses.
What kind of system is a solar chimney?
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Answer: passive solar ventilation

Problem: In 1983, the Church issued a new code of canon law. Unlike its predecessor, the 1983 Code of Canon Law did not explicitly name Masonic orders among the secret societies it condemns. It states: "A person who joins an association which plots against the Church is to be punished with a just penalty; one who promotes or takes office in such an association is to be punished with an interdict." This named omission of Masonic orders caused both Catholics and Freemasons to believe that the ban on Catholics becoming Freemasons may have been lifted, especially after the perceived liberalisation of Vatican II. However, the matter was clarified when Cardinal Joseph Ratzinger (later Pope Benedict XVI), as the Prefect of the Congregation for the Doctrine of the Faith, issued a Declaration on Masonic Associations, which states: "... the Church's negative judgment in regard to Masonic association remains unchanged since their principles have always been considered irreconcilable with the doctrine of the Church and therefore membership in them remains forbidden. The faithful who enroll in Masonic associations are in a state of grave sin and may not receive Holy Communion." For its part, Freemasonry has never objected to Catholics joining their fraternity. Those Grand Lodges in amity with UGLE deny the Church's claims. The UGLE now states that "Freemasonry does not seek to replace a Mason's religion or provide a substitute for it."
Who clarified the new code of Canon law of 1973?
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Answer:
unanswerable