In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

One of his attendants was represented by an oxen, and another was the god of water, and represented by a snake. Vohu Manah and Haurvatat, together with Asha, Kshathra, Armaiti, and Ameretat, were called the Amesha Spentas, who opposed the Daevas. His father, Zurvan, was a deity of space, time, and fate, and his son, Atar, battled a dragon, Azhi Dahaka, that cut Zima in half with a saw. Called Ormazdh in the religion's contemporary form, it was Vohu Manah who appeared to a certain prophet near the Daitya River, invited him to come to heaven, and inspired him to compose the Gathas, part of the Avesta. FTP, name this god, the counterpart of Ahriman, the embodiment of good, and the supreme deity in Zoroastrianism.
Social Science

First proposed by Lewis, it is related logarithmically to a gas's standard Gibbs free energy divided by the temperature and gas constant. At equilibrium, this quantity must be equal in both gas and liquid phases. Taking the derivative of the natural log of this function is equates it to the derivative of a reaction's chemical potential. Equal to the gas' pressure when the gas is ideal, FTP, identify this thermodynamic quantity which replaces partial pressure when working with real gases and describes the tendency of a substance to escape from its current phase, symbolized by f.
Science

This character was once stopped by the watchman who possessed seven magic mantles, and at Mount Mashu, he was warned by the scorpion men about the dangers of entering the underground passage. His last quest centered on the search for the plant that grows in the water of death, and during that quest, he met Utnapishtim. At the cedar wood, he defeated the fire-breathing Humbaba, and he fought the Bull of Heaven with his friend Enkidu after rejecting Ishtar. For 10 points, name this title character of a Mesopotamian epic.
Social Science