Question: The Islamic conquests reached their peak in the mid-8th century. The defeat of Muslim forces at the Battle of Poitiers in 732 led to the reconquest of southern France by the Franks, but the main reason for the halt of Islamic growth in Europe was the overthrow of the Umayyad dynasty and its replacement by the Abbasid dynasty. The Abbasids moved their capital to Baghdad and were more concerned with the Middle East than Europe, losing control of sections of the Muslim lands. Umayyad descendants took over the Iberian Peninsula, the Aghlabids controlled North Africa, and the Tulunids became rulers of Egypt. By the middle of the 8th century, new trading patterns were emerging in the Mediterranean; trade between the Franks and the Arabs replaced the old Roman patterns of trade. Franks traded timber, furs, swords and slaves in return for silks and other fabrics, spices, and precious metals from the Arabs.
Try to answer this question if possible: What dynasty ruled Egypt in this period?
Answer: Tulunids
Question: The television industry developed in New York and is a significant employer in the city's economy. The three major American broadcast networks are all headquartered in New York: ABC, CBS, and NBC. Many cable networks are based in the city as well, including MTV, Fox News, HBO, Showtime, Bravo, Food Network, AMC, and Comedy Central. The City of New York operates a public broadcast service, NYCTV, that has produced several original Emmy Award-winning shows covering music and culture in city neighborhoods and city government.
Try to answer this question if possible: Along with ABC and NBC, what other major broadcaster is based in New York?
Answer: CBS
Question: The relationships above are valid for only a few percent change of voltage around rated conditions, but they do indicate that a lamp operated at much lower than rated voltage could last for hundreds of times longer than at rated conditions, albeit with greatly reduced light output. The "Centennial Light" is a light bulb that is accepted by the Guinness Book of World Records as having been burning almost continuously at a fire station in Livermore, California, since 1901. However, the bulb emits the equivalent light of a four watt bulb. A similar story can be told of a 40-watt bulb in Texas that has been illuminated since 21 September 1908. It once resided in an opera house where notable celebrities stopped to take in its glow, and was moved to an area museum in 1977.
Try to answer this question if possible: What was moved to an area art gallery in 1977?
Answer: unanswerable
Question: Asthma is clinically classified according to the frequency of symptoms, forced expiratory volume in one second (FEV1), and peak expiratory flow rate. Asthma may also be classified as atopic (extrinsic) or non-atopic (intrinsic), based on whether symptoms are precipitated by allergens (atopic) or not (non-atopic). While asthma is classified based on severity, at the moment there is no clear method for classifying different subgroups of asthma beyond this system. Finding ways to identify subgroups that respond well to different types of treatments is a current critical goal of asthma research.
Try to answer this question if possible: What is a important goal of asthma research?
Answer:
Finding ways to identify subgroups that respond well to different types of treatments