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: This element's only oxidation state is -1, and it is impossible to free from its compounds by chemical means. It is prepared commercially be the same method which Henri Moisson used to isolate it in 1886, and is also found in the mineral cryolite. Its only isotope is the stabe 19 version, and in its gaseous form takes on a pale yellow color. The most electronegative and reactive of the elements, FTP, what is this lightest of the halogens with atomic number 9 and symbol F

Answer: Science


Question: One analogue to this rule is named for Hopkinson and has constant of proportionality the reluctance; this rule and Hopkinsons law may be combined for a circulating magnetic field in a plasma to analyze a namesake form of heating. A generalization of this equation states that the current density equals the sum over n from 1 to infinity of the nth conductivity tensor acting on the nth direct product of the electric field; truncating to first order gives the microscopic form of this law, j equals sigma E, which may be averaged to give the more familiar lumped circuit form. For 10 points, name this physical law that says that the voltage drop is the current times the resistance, or V equals I R; a law named for a German high school teacher.

Answer: Science


Question: The expression of this protein is partly controlled by the binding of NeuroD1 and Par1, and its secretion is inhibited by SIRT4, which ADP-ribosylates glutamate dehydrogenase. Artificial versions of it include Glargine and Lispro versions, and its structure consists of a central zinc ion coordinated to histidine residues in a hexamer. Originally extracted by Banting and Macleod, this hormone partly operates by upregulating the translocation of GLUT4 to the plasma membrane. By up-regulating protein kinase B and PFK-2, this hormone promotes glycogen synthesis and opposes gluconeogenesis. Antagonistic to glucagon, FTP, name this peptide hormone secreted from the beta cells of the Islets of Langerhans, responsible for lowering blood sugar.

Answer:
Science