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.

Japan's Chikyu Hakken is trying to reach this region, and n-waves travel along its upper boundary. Post-perovskite forms in the bottommost part of this region, the D double prime layer. P-waves slow down and S-waves disappear past the bottom of this region, and its top features a P-wave velocity jump from approximately seven to approximately eight kilometers per second. The low velocity zone of the asthenosphere is found in the upper part of this region. It is sandwiched between the Gutenburg discontinuity and the Moho, and this layer's namesake plumes form hotspots. For 10 points, name this layer of the earth between the crust and the core.
Science

LDA is used to transform propargyl diol into one of these compounds in the Whiting reaction. A  useful one of these compounds is synthesized using zinc chloride to combine trimethylsilyl chloride  with methoxybutenone. The namesake value of these compounds is expressed as the mass of iodine  equivalent to the amount of (*) maleic anhydride reacting with a unit mass of one of these. The  cumulated type of these compounds are less stable than other types. Electrophilic addition can result in  both 1,2 and 1,4 additions in the conjugated type of these molecules. That type also undergoes a type of  reaction that follows the endo addition rule and forms cyclohexenes, the Diels-Alder reaction. For 10  points, name these hydrocarbons that contain two carbon-carbon double bonds.
Science

His large altarpiece at St. Peter's, the Martyrdom of St. Erasmus, was a critical failure, but he recouped respect with works like the "7 Sacraments" series for Cassiano Pozzo. His first works were copies of Raphael, and differed distinctly from mature pieces like Death of Meleager and Death of Germanicus. Early commissions, including a set of illustrations of Ovid's Metamorphoses, were made in his adopted country. And though he worked almost entirely in Rome, he briefly returned to his native land in 1641 when Louis XIII asked him to decorate the Great Gallery of the Louvre. Landscapes like Landscape with Polyphemus are typical of, for 10 points, what baroque French artist of The Arcadian Shepherds and Holy Family on the Steps

Fine Arts