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.
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Question: In topological insulators, one version of this effect gives rise to a defect-resistant current induced by spin-orbit coupling. In graphene, this effect is shifted by one half, giving rise to an anomalous minimum of the relevant quantity, which can allow for ballistic transport. A more complex version of it was discovered in gallium arsenide and can be explained by Laughlin quasiparticles; this is referred to as the fractional version. This effect can be understood in terms of partial filling of Landau levels and has characteristic "plateaus", and it yields numbers called filling factors. Discovered by Klaus von Klitzing when studying a two-dimensional electron gas, for 10 points, identify this effect in which conductivity in a strong magnetic field is quantized.

Answer: Science


Question: Having fought in the Chaco War, this man served as commander-in-chief of his nation's armed forces from 1951-54, and in 1954 he ousted President Frederico Chavez. Nicknamed Colonel Trunk, he essentially ruled as a totalitarian, and membership in his Colorado Party was a requirement for most jobs. His country became notorious for its illegal trade, drug trafficing, and harboring of NAZI war criminals, and in 1989 he was ousted by so-called "traditionalists" led by Andres Rodriguez. FTP, who was this son of a German immigrant, the long-time president of Paraguay

Answer: History


Question: This state was where the author of Sand County Almanac, Aldo Leopold, taught for many years. The 1924 Progressive Party candidate for President was from this state, where as governor, he had previously introduced such progressive policies as direct election of senators. That governor of this state was Robert La Follette. This state's current governor survived a 2012 gubernatorial recall election and is staunchly opposed to public employees' collective bargaining rights. For 10 points, name this state governed by Scott Walker, whose largest city is Milwaukee.

Answer:
History