Article: It has been used for thousands of years for both fuel and as a construction material. It is an organic material, a natural composite of cellulose fibers (which are strong in tension) embedded in a matrix of lignin which resists compression. Wood is sometimes defined as only the secondary xylem in the stems of trees, or it is defined more broadly to include the same type of tissue elsewhere such as in the roots of trees or shrubs.[citation needed] In a living tree it performs a support function, enabling woody plants to grow large or to stand up by themselves. It also conveys water and nutrients between the leaves, other growing tissues, and the roots. Wood may also refer to other plant materials with comparable properties, and to material engineered from wood, or wood chips or fiber.

Question: What kind of strong fibers are part of the composite of wood?
Ans: cellulose

Here is a question about this article: Whether there are measurable changes in the sea level relative to the islands of Tuvalu is a contentious issue. There were problems associated with the pre-1993 sea level records from Funafuti which resulted in improvements in the recording technology to provide more reliable data for analysis. The degree of uncertainty as to estimates of sea level change relative to the islands of Tuvalu was reflected in the conclusions made in 2002 from the available data. The 2011 report of the Pacific Climate Change Science Program published by the Australian Government, concludes: "The sea-level rise near Tuvalu measured by satellite altimeters since 1993 is about 5 mm (0.2 in) per year."
What is the answer to this question: What subject is arguable concerning Tuvalu?
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So... sea level

The problem: Answer a question about this article:
Wood has long been used as an artistic medium. It has been used to make sculptures and carvings for millennia. Examples include the totem poles carved by North American indigenous people from conifer trunks, often Western Red Cedar (Thuja plicata), and the Millennium clock tower, now housed in the National Museum of Scotland in Edinburgh. It is also used in woodcut printmaking, and for engraving.
What museum exhibits the Millennium clock tower?
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The answer: National Museum of Scotland

Problem: Please answer a question about the following article about Anti-aircraft warfare:
The Treaty of Versailles prevented Germany having AA weapons, and for example, the Krupps designers joined Bofors in Sweden. Some World War I guns were retained and some covert AA training started in the late 1920s. Germany introduced the 8.8 cm FlaK 18 in 1933, 36 and 37 models followed with various improvements but ballistic performance was unchanged. In the late 1930s the 10.5 cm FlaK 38 appeared soon followed by the 39, this was designed primarily for static sites but had a mobile mounting and the unit had 220v 24 kW generators. In 1938 design started on the 12.8 cm FlaK.
When did the 10.5 centimeter FlaK 38 appear in Germany?
A: In the late 1930s

Question: Read this and answer the question

Paris and its region host the headquarters of several international organisations including UNESCO, the Organisation for Economic Co-operation and Development, the International Chamber of Commerce, the Paris Club, the European Space Agency, the International Energy Agency, the Organisation internationale de la Francophonie, the European Union Institute for Security Studies, the International Bureau of Weights and Measures, the International Exhibition Bureau and the International Federation for Human Rights.

Where is the head quarters for the European Space Agency?
Answer: Paris

WPXD channel 31, an affiliate of the ION Television network, is licensed to the city. WHTV channel 18, a MyNetworkTV-affiliated station for the Lansing market, broadcasts from a transmitter in Lyndon Township, west of Ann Arbor. Community Television Network (CTN) is a city-provided cable television channel with production facilities open to city residents and nonprofit organizations. Detroit and Toledo-area radio and television stations also serve Ann Arbor, and stations from Lansing and Windsor, Ontario, can be heard in parts of the area.
WPXD channel 31 is an affliate of which TV network?
ION