Problem: Frederic Chopin:

Chopin seldom performed publicly in Paris. In later years he generally gave a single annual concert at the Salle Pleyel, a venue that seated three hundred. He played more frequently at salons, but preferred playing at his own Paris apartment for small groups of friends. The musicologist Arthur Hedley has observed that "As a pianist Chopin was unique in acquiring a reputation of the highest order on the basis of a minimum of public appearancesfew more than thirty in the course of his lifetime." The list of musicians who took part in some of his concerts provides an indication of the richness of Parisian artistic life during this period. Examples include a concert on 23 March 1833, in which Chopin, Liszt and Hiller performed (on pianos) a concerto by J.S. Bach for three keyboards; and, on 3 March 1838, a concert in which Chopin, his pupil Adolphe Gutmann, Charles-Valentin Alkan, and Alkan's teacher Joseph Zimmermann performed Alkan's arrangement, for eight hands, of two movements from Beethoven's 7th symphony. Chopin was also involved in the composition of Liszt's Hexameron; he wrote the sixth (and final) variation on Bellini's theme. Chopin's music soon found success with publishers, and in 1833 he contracted with Maurice Schlesinger, who arranged for it to be published not only in France but, through his family connections, also in Germany and England.

Who did Chopin contract with for publishing his music?
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A: Maurice Schlesinger

Problem: Wood:

The single most revealing property of wood as an indicator of wood quality is specific gravity (Timell 1986), as both pulp yield and lumber strength are determined by it. Specific gravity is the ratio of the mass of a substance to the mass of an equal volume of water; density is the ratio of a mass of a quantity of a substance to the volume of that quantity and is expressed in mass per unit substance, e.g., grams per millilitre (g/cm3 or g/ml). The terms are essentially equivalent as long as the metric system is used. Upon drying, wood shrinks and its density increases. Minimum values are associated with green (water-saturated) wood and are referred to as basic specific gravity (Timell 1986).

Which property of wood reveals the most about its quality?
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A: specific gravity

Problem: North Carolina:

Before A.D. 200, residents were building earthwork mounds, which were used for ceremonial and religious purposes. Succeeding peoples, including those of the ancient Mississippian culture established by A.D. 1000 in the Piedmont, continued to build or add onto such mounds. In the 500700 years preceding European contact, the Mississippian culture built large, complex cities and maintained far-flung regional trading networks. Historically documented tribes in the North Carolina region included the Carolina Algonquian-speaking tribes of the coastal areas, such as the Chowanoke, Roanoke, Pamlico, Machapunga, Coree, Cape Fear Indians, and others, who were the first to encounter the English; Iroquoian-speaking Meherrin, Cherokee and Tuscarora of the interior; and Southeastern Siouan tribes, such as the Cheraw, Waxhaw, Saponi, Waccamaw, and Catawba.[citation needed]

Where did the Algonquin speaking tribes of North Carolina live?
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A: the coastal areas

Problem: Russian Soviet Federative Socialist Republic:

On October 11, 1944, the Tuvan People's Republic joined the Russian SFSR as the Tuvan Autonomous Oblast, in 1961 becoming an Autonomous Soviet Socialist Republic.

What did the former Tuvan People's Republic become in 1961?
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A:
an Autonomous Soviet Socialist Republic