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.

[Q]: In the Corey-Bakshi-Shibata catalyst, an atom of it is attached to a pyrrole ring, an oxygen atom, and a toluene group. This element's acids are combined with amines and ketones in the Petasis reaction and in combining alkyl halides through the Suzuki coupling. Complexes containing it are called sido or arachno according to Wade's rules, and a more famous reaction using it is sometimes named for Herbert Brown. Mined from the ore Uletite, its silicate was once used in making hard glass for manufacturing laboratory equipment. For 10 points, name this element that participates in an anti-markonikov addition reaction to alkenes, with atomic number 5 and symbol B.
[A]: Science

[Q]: A king and counselor of the Anunnaki, this deity receives the earth in Atrahasis, and is worshipped in the temple of Duranki. One story regards the theft by Zu of his tablets of destiny that allows him to determine the fate of all living and nonliving things. Another, which has him supplanted by Marduk, tells of his response to the rebellion of the Igigi, which included the unleashing of a series of disasters that included the Great Flood. Known for his short temper, he sentenced Enkidu to death for his role in killing the Great Bull of Heaven. FTP, name this Sumerian god of the earth and land, supplanted by Anu as leader of the pantheon, whose name means "Lord Wind. "
[A]: Social Science

[Q]: The stretch rule states that this quantity does not change when an object is distorted along its axis of rotation. The tensor for this quantity is symmetric, and is diagonal in some orientation, defining an object's principal axes. If this value is given for one axis of rotation it can be found for certain others using the (*) parallel axis theorem. It is calculated by summing or integrating mass times distance from an axis squared, and rotational kinetic energy is equal to this quantity times the square of the angular velocity. For 10 points, identify this quantity, the rotational analog of mass, which often has units of kilograms times meters squared, symbolized I.
[A]:
Science