Problem: Question: "What are the two fields that are separate from classic mechanics?" Context: "In non-relativistic classical mechanics, Newton's concept of "relative, apparent, and common time" can be used in the formulation of a prescription for the synchronization of clocks. Events seen by two different observers in motion relative to each other produce a mathematical concept of time that works sufficiently well for describing the everyday phenomena of most people's experience. In the late nineteenth century, physicists encountered problems with the classical understanding of time, in connection with the behavior of electricity and magnetism. Einstein resolved these problems by invoking a method of synchronizing clocks using the constant, finite speed of light as the maximum signal velocity. This led directly to the result that observers in motion relative to one another measure different elapsed times for the same event." Answer:

A: electricity and magnetism

Problem: Question: "12.72% of the population are?" Context: "From the 2000 census[update], 60,455 or 47.0% belonged to the Swiss Reformed Church, while 31,510 or 24.5% were Roman Catholic. Of the rest of the population, there were 1,874 members of an Orthodox church (or about 1.46% of the population), there were 229 persons (or about 0.18% of the population) who belonged to the Christian Catholic Church, and there were 5,531 persons (or about 4.30% of the population) who belonged to another Christian church. There were 324 persons (or about 0.25% of the population) who were Jewish, and 4,907 (or about 3.81% of the population) who were Muslim. There were 629 persons who were Buddhist, 1,430 persons who were Hindu and 177 persons who belonged to another church. 16,363 (or about 12.72% of the population) belonged to no church, are agnostic or atheist, and 7,855 persons (or about 6.11% of the population) did not answer the question. On 14 December 2014 the Haus der Religionen was inaugurated." Answer:

A: agnostic or atheist

Problem: Question: "Pan and Apollo both made what?" Context: "Once Pan had the audacity to compare his music with that of Apollo, and to challenge Apollo, the god of the kithara, to a trial of skill. Tmolus, the mountain-god, was chosen to umpire. Pan blew on his pipes, and with his rustic melody gave great satisfaction to himself and his faithful follower, Midas, who happened to be present. Then Apollo struck the strings of his lyre. Tmolus at once awarded the victory to Apollo, and all but Midas agreed with the judgment. He dissented and questioned the justice of the award. Apollo would not suffer such a depraved pair of ears any longer, and caused them to become the ears of a donkey." Answer:

A: music

Problem: Question: "When did views on sexual orientation begin to change?" Context: "The earliest writers on sexual orientation usually understood it to be intrinsically linked to the subject's own sex. For example, it was thought that a typical female-bodied person who is attracted to female-bodied persons would have masculine attributes, and vice versa. This understanding was shared by most of the significant theorists of sexual orientation from the mid nineteenth to early twentieth century, such as Karl Heinrich Ulrichs, Richard von Krafft-Ebing, Magnus Hirschfeld, Havelock Ellis, Carl Jung, and Sigmund Freud, as well as many gender-variant homosexual people themselves. However, this understanding of homosexuality as sexual inversion was disputed at the time, and, through the second half of the twentieth century, gender identity came to be increasingly seen as a phenomenon distinct from sexual orientation. Transgender and cisgender people may be attracted to men, women, or both, although the prevalence of different sexual orientations is quite different in these two populations. An individual homosexual, heterosexual or bisexual person may be masculine, feminine, or androgynous, and in addition, many members and supporters of lesbian and gay communities now see the "gender-conforming heterosexual" and the "gender-nonconforming homosexual" as negative stereotypes. Nevertheless, studies by J. Michael Bailey and Kenneth Zucker found a majority of the gay men and lesbians sampled reporting various degrees of gender-nonconformity during their childhood years." Answer:

A:
second half of the twentieth century