Here is a question about this article: Southern Italy was also part of the Norman kingdom but great mosaics did not survive in this area except the fine mosaic pavement of the Otranto Cathedral from 1166, with mosaics tied into a tree of life, mostly still preserved. The scenes depict biblical characters, warrior kings, medieval beasts, allegories of the months and working activity. Only fragments survived from the original mosaic decoration of Amalfi's Norman Cathedral. The mosaic ambos in the churches of Ravello prove that mosaic art was widespread in Southern Italy during the 11th13th centuries.
What is the answer to this question: The only surviving mosaic from Norman held souther Italy is what?
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So... pavement of the Otranto Cathedral

Here is a question about this article: According to conservation of energy, energy can neither be created (produced) nor destroyed by itself. It can only be transformed. The total inflow of energy into a system must equal the total outflow of energy from the system, plus the change in the energy contained within the system. Energy is subject to a strict global conservation law; that is, whenever one measures (or calculates) the total energy of a system of particles whose interactions do not depend explicitly on time, it is found that the total energy of the system always remains constant.
What is the answer to this question: What can neither be created nor destroyed by itself; it can only be transformed?
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So... energy

Here is a question about this article: From his eastern origin Apollo brought the art of inspection of "symbols and omina" ( : semeia kai terata), and of the observation of the omens of the days. The inspiration oracular-cult was probably introduced from Anatolia. The ritualism belonged to Apollo from the beginning. The Greeks created the legalism, the supervision of the orders of the gods, and the demand for moderation and harmony. Apollo became the god of shining youth, the protector of music, spiritual-life, moderation and perceptible order. The improvement of the old Anatolian god, and his elevation to an intellectual sphere, may be considered an achievement of the Greek people.
What is the answer to this question: Who brought the art of inspection of "symbols and omina?"
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So...
Apollo