Problem: Neolithic:

During most of the Neolithic age of Eurasia, people lived in small tribes composed of multiple bands or lineages. There is little scientific evidence of developed social stratification in most Neolithic societies; social stratification is more associated with the later Bronze Age. Although some late Eurasian Neolithic societies formed complex stratified chiefdoms or even states, states evolved in Eurasia only with the rise of metallurgy, and most Neolithic societies on the whole were relatively simple and egalitarian. Beyond Eurasia, however, states were formed during the local Neolithic in three areas, namely in the Preceramic Andes with the Norte Chico Civilization, Formative Mesoamerica and Ancient Hawaii. However, most Neolithic societies were noticeably more hierarchical than the Paleolithic cultures that preceded them and hunter-gatherer cultures in general.

When did states evolve in Norte?
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A: unanswerable

Problem: In 1860, Adolf Bastian (18261905) argued for "the psychic unity of mankind". He proposed that a scientific comparison of all human societies would reveal that distinct worldviews consisted of the same basic elements. According to Bastian, all human societies share a set of "elementary ideas" (Elementargedanken); different cultures, or different "folk ideas" (Volkergedanken), are local modifications of the elementary ideas. This view paved the way for the modern understanding of culture. Franz Boas (18581942) was trained in this tradition, and he brought it with him when he left Germany for the United States.
According to Bastian, what did he believe all human societies shared?
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Answer: elementary ideas

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Uranium ore is mined in several ways: by open pit, underground, in-situ leaching, and borehole mining (see uranium mining). Low-grade uranium ore mined typically contains 0.01 to 0.25% uranium oxides. Extensive measures must be employed to extract the metal from its ore. High-grade ores found in Athabasca Basin deposits in Saskatchewan, Canada can contain up to 23% uranium oxides on average. Uranium ore is crushed and rendered into a fine powder and then leached with either an acid or alkali. The leachate is subjected to one of several sequences of precipitation, solvent extraction, and ion exchange. The resulting mixture, called yellowcake, contains at least 75% uranium oxides U3O8. Yellowcake is then calcined to remove impurities from the milling process before refining and conversion.
What is the average percentage of uranium oxide contained in the ores mined in the Athabasca Basin?
A: 23%

Context and question: During the 19th and 20th centuries there was a major dispute known as the Greek language question, on whether the official language of Greece should be the archaic Katharevousa, created in the 19th century and used as the state and scholarly language, or the Dimotiki, the form of the Greek language which evolved naturally from Byzantine Greek and was the language of the people. The dispute was finally resolved in 1976, when Dimotiki was made the only official variation of the Greek language, and Katharevousa fell to disuse.
Which language was considered the language of the people?
Answer: Dimotiki

Question: The best-known medieval Chinese name for Tibet is Tubo (Chinese: also written as or ; pinyin: Tubo or Tufan). This name first appears in Chinese characters as in the 7th century (Li Tai) and as in the 10th-century (Old Book of Tang describing 608609 emissaries from Tibetan King Namri Songtsen to Emperor Yang of Sui). In the Middle Chinese spoken during that period, as reconstructed by William H. Baxter, was pronounced thux-phjon and was pronounced thux-pjon (with the x representing tone).
Is there an answer to this question: Who else in addition to Emperor Yang Songsten does the Old Book of Tang describe?

Answer: unanswerable

Problem: Energy:

Energy transfer can be considered for the special case of systems which are closed to transfers of matter. The portion of the energy which is transferred by conservative forces over a distance is measured as the work the source system does on the receiving system. The portion of the energy which does not do work during the transfer is called heat.[note 4] Energy can be transferred between systems in a variety of ways. Examples include the transmission of electromagnetic energy via photons, physical collisions which transfer kinetic energy,[note 5] and the conductive transfer of thermal energy.

The portion of energy which works during the transfer is called what?
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A:
unanswerable