Article: The softness of copper partly explains its high electrical conductivity (59.6106 S/m) and thus also high thermal conductivity, which are the second highest (to silver) among pure metals at room temperature. This is because the resistivity to electron transport in metals at room temperature mostly originates from scattering of electrons on thermal vibrations of the lattice, which are relatively weak for a soft metal. The maximum permissible current density of copper in open air is approximately 3.1106 A/m2 of cross-sectional area, above which it begins to heat excessively. As with other metals, if copper is placed against another metal, galvanic corrosion will occur.

Question: What happens to copper if an electrical current gets too high?
Ans: it begins to heat excessively

Article: However, Samoans greatly resented New Zealand's colonial rule, and blamed inflation and the catastrophic 1918 flu epidemic on its misrule. By the late 1920s the resistance movement against colonial rule had gathered widespread support. One of the Mau leaders was Olaf Frederick Nelson, a half Samoan and half Swedish merchant. Nelson was eventually exiled during the late 1920s and early 1930s, but he continued to assist the organisation financially and politically. In accordance with the Mau's non-violent philosophy, the newly elected leader, High Chief Tupua Tamasese Lealofi, led his fellow uniformed Mau in a peaceful demonstration in downtown Apia on 28 December 1929.

Question: What decade marked the peak of support for opposition to New Zealand's governance?
Ans: 1920s

Article: Historically, pubs have been socially and culturally distinct from cafes, bars and German beer halls. Most pubs offer a range of beers, wines, spirits, and soft drinks and snacks. Traditionally the windows of town pubs were of smoked or frosted glass to obscure the clientele from the street but from the 1990s onwards, there has been a move towards clear glass, in keeping with brighter interiors.

Question: What fares do most pubs offer?
Ans: beers, wines, spirits, and soft drinks and snacks

Article: This meagre statistic expanded in the 20th century to comprise anthropology departments in the majority of the world's higher educational institutions, many thousands in number. Anthropology has diversified from a few major subdivisions to dozens more. Practical anthropology, the use of anthropological knowledge and technique to solve specific problems, has arrived; for example, the presence of buried victims might stimulate the use of a forensic archaeologist to recreate the final scene. Organization has reached global level. For example, the World Council of Anthropological Associations (WCAA), "a network of national, regional and international associations that aims to promote worldwide communication and cooperation in anthropology", currently contains members from about three dozen nations.

Question: What type of anthropology is used to solve specific problems?
Ans:
Practical