Problem: Frederic Chopin:

In 1817 the Saxon Palace was requisitioned by Warsaw's Russian governor for military use, and the Warsaw Lyceum was reestablished in the Kazimierz Palace (today the rectorate of Warsaw University). Fryderyk and his family moved to a building, which still survives, adjacent to the Kazimierz Palace. During this period, Fryderyk was sometimes invited to the Belweder Palace as playmate to the son of the ruler of Russian Poland, Grand Duke Constantine; he played the piano for the Duke and composed a march for him. Julian Ursyn Niemcewicz, in his dramatic eclogue, "Nasze Przebiegi" ("Our Discourses", 1818), attested to "little Chopin's" popularity.

In one of his works who affirmed the popularity of Chopin as a child?
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A: Julian Ursyn Niemcewicz

Problem: Wood:

It is common to classify wood as either softwood or hardwood. The wood from conifers (e.g. pine) is called softwood, and the wood from dicotyledons (usually broad-leaved trees, e.g. oak) is called hardwood. These names are a bit misleading, as hardwoods are not necessarily hard, and softwoods are not necessarily soft. The well-known balsa (a hardwood) is actually softer than any commercial softwood. Conversely, some softwoods (e.g. yew) are harder than many hardwoods.

What's the scientific name for trees like the oak with broad leaves?
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A: dicotyledons

Problem: Federalism:

Federalism also finds expression in ecclesiology (the doctrine of the church). For example, presbyterian church governance resembles parliamentary republicanism (a form of political federalism) to a large extent. In Presbyterian denominations, the local church is ruled by elected elders, some of which are ministerial. Each church then sends representatives or commissioners to presbyteries and further to a general assembly. Each greater level of assembly has ruling authority over its constituent members. In this governmental structure, each component has some level of sovereignty over itself. As in political federalism, in presbyterian ecclesiology there is shared sovereignty.

What doesn't happen in Presbyterian denominations?
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A: unanswerable

Problem: Race (human categorization):

Kaszycka et al. (2009) in 20022003 surveyed European anthropologists' opinions toward the biological race concept. Three factors, country of academic education, discipline, and age, were found to be significant in differentiating the replies. Those educated in Western Europe, physical anthropologists, and middle-aged persons rejected race more frequently than those educated in Eastern Europe, people in other branches of science, and those from both younger and older generations." The survey shows that the views on race are sociopolitically (ideologically) influenced and highly dependent on education."

How are views on race influenced?
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A:
ideologically