instruction:
This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.
question:
In times past, until the 15th century, in Korea, Literary Chinese was the dominant form of written communication, prior to the creation of hangul, the Korean alphabet. Much of the vocabulary, especially in the realms of science and sociology, comes directly from Chinese, comparable to Latin or Greek root words in European languages. However, due to the lack of tones in Korean,[citation needed] as the words were imported from Chinese, many dissimilar characters took on identical sounds, and subsequently identical spelling in hangul.[citation needed] Chinese characters are sometimes used to this day for either clarification in a practical manner, or to give a distinguished appearance, as knowledge of Chinese characters is considered a high class attribute and an indispensable part of a classical education.[citation needed] It is also observed that the preference for Chinese characters is treated as being conservative and Confucian.
answer:
What was the dominant form of written communication?

question:
The diversion of heavier bombers to the Balkans meant that the crews and units left behind were asked to fly two or three sorties per night. Bombers were noisy, cold, and vibrated badly. Added to the tension of the mission which exhausted and drained crews, tiredness caught up with and killed many. In one incident on 28/29 April, Peter Stahl of KG 30 was flying on his 50th mission. He fell asleep at the controls of his Ju 88 and woke up to discover the entire crew asleep. He roused them, ensured they took oxygen and Dextro-Energen tablets, then completed the mission.
answer:
How many sorties a night were crews asked to fly?

question:
The plan stated that the following numbers of species of different groups had been recorded from Egypt: algae (1483 species), animals (about 15,000 species of which more than 10,000 were insects), fungi (more than 627 species), monera (319 species), plants (2426 species), protozoans (371 species). For some major groups, for example lichen-forming fungi and nematode worms, the number was not known. Apart from small and well-studied groups like amphibians, birds, fish, mammals and reptiles, the many of those numbers are likely to increase as further species are recorded from Egypt. For the fungi, including lichen-forming species, for example, subsequent work has shown that over 2200 species have been recorded from Egypt, and the final figure of all fungi actually occurring in the country is expected to be much higher.
answer:
How many species of plants were recorded in Egypt?