instruction:
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.
question:
In plasmas, the ambipolar version of this phenomenon is inversely proportional to the collision frequency, while the classical form is directly proportional, and is a random-walk process. A semi-empirical formula can be used to describe the Bohn version, while classical cases are governed by Fick's laws and Graham's law. FTP, what is this process in which gases mix due to the random motions of their molecules
answer:
Science

question:
In 2007, this city began a controversial underground rail project called the Crossrail. In 2009, its mayor, Boris Johnson, saved a woman from a mugging while biking to work. In 2005, this city was rocked by a series of coordinated terrorist attacks on July 7. This city is in the process of constructing an Aquatics Centre, a Velopark (VELL-oh-park), and a Handball Arena as it is hosting the 2012 Summer Olympics. For 10 points, name this capital of the United Kingdom.
answer:
Fine Arts

question:
One battle won by this non-Norman polity is also known as the battle of the battle, because a city named the battle was established there in celebration of victory. This polity signed the Treaty of Zamora, and won its independence at the Battle of Ourique against the Almoravids, which led to the establishment of the House of Burgundy in this polity under its first independent king, Afonso Henriques. This politys capital was liberated from the Moors with the help of English knights who were en route to the Second Crusade, and at the Battle of Aljubarrota this country defeated an invasion from Castile. After the Battle of Alcazaquibir, where this politys King Sebastian died, it would be annexed by Philip II of Spain. For ten points, name this Iberian country with capital at Lisbon.
answer:
History