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.

Input: Consider Input: These objects contain the zone of plastic flow and the zone of brittle flow. They are formed by compressing firn, and parts of them break off by calving. Till is soil left behind by these objects, which also push material to form moraines. Cirques (SERKS) and fjords (FYORDS) are among the landforms due to erosion by these objects. For 10 points, name these moving masses of land ice.

Output: Science


Input: Consider Input: Laplaces rule may be used to compute a version of this quantity for its namesake tensor in order to prove the Alon-Tarsi conjecture for Latin squares of even order; that proof uses Cayleys version of this operator. The Cauchy-Binet rule generalizes it to commutative rings, while Leibnizs formula uses permutations of elements to compute it. Setting to zero the result of this operation on lambda I minus A allows us to calculate As eigenvalues. Cramers rule uses ratios of these to solve systems of linear equations. For ten points, name this quantity that is a d minus c b for a 2 by 2 matrix a b c d.

Output: Science


Input: Consider Input: This thinker was the subject of ridicule by the newspaper The Corsair, and near the end of his life he attacked the bishop H.L. Martensen in several letters. This author of The Concept of Anxiety presented three forms of despair in his Sickness unto Death, which he wrote under the pseudonym Anti-Climacus. He contrasts the aesthetic and ethical ways of life in his book Either/Or, while another work by him centers on Abraham's decision to sacrifice his son Isaac. For 10 points, name this Danish philosopher of Fear and Trembling.


Output: Social Science