Problem: Egypt:

The Byzantines were able to regain control of the country after a brief Sasanian Persian invasion early in the 7th century amidst the ByzantineSasanian War of 602628 during which they established a new short-lived province for ten years known as Sasanian Egypt, until 63942, when Egypt was invaded and conquered by the Islamic Empire by the Muslim Arabs. When they defeated the Byzantine Armies in Egypt, the Arabs brought Sunni Islam to the country. Early in this period, Egyptians began to blend their new faith with indigenous beliefs and practices, leading to various Sufi orders that have flourished to this day. These earlier rites had survived the period of Coptic Christianity.

Who took control of Egypt from Sasanian Persian rule?
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A: Byzantines

Problem: Bird:

The skeleton consists of very lightweight bones. They have large air-filled cavities (called pneumatic cavities) which connect with the respiratory system. The skull bones in adults are fused and do not show cranial sutures. The orbits are large and separated by a bony septum. The spine has cervical, thoracic, lumbar and caudal regions with the number of cervical (neck) vertebrae highly variable and especially flexible, but movement is reduced in the anterior thoracic vertebrae and absent in the later vertebrae. The last few are fused with the pelvis to form the synsacrum. The ribs are flattened and the sternum is keeled for the attachment of flight muscles except in the flightless bird orders. The forelimbs are modified into wings.

What consists of very lightweight bones?
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A: The skeleton

Problem: Geological history of Earth:

The Silurian is a major division of the geologic timescale that started about 443.8 1.5 Ma. During the Silurian, Gondwana continued a slow southward drift to high southern latitudes, but there is evidence that the Silurian ice caps were less extensive than those of the late Ordovician glaciation. The melting of ice caps and glaciers contributed to a rise in sea levels, recognizable from the fact that Silurian sediments overlie eroded Ordovician sediments, forming an unconformity. Other cratons and continent fragments drifted together near the equator, starting the formation of a second supercontinent known as Euramerica. The vast ocean of Panthalassa covered most of the northern hemisphere. Other minor oceans include Proto-Tethys, Paleo-Tethys, Rheic Ocean, a seaway of Iapetus Ocean (now in between Avalonia and Laurentia), and newly formed Ural Ocean.

Which ocean ranged the majority of the northern hemisphere in the Silurian period?
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A: Panthalassa

Problem: Arsenal F.C.:

Arsenal was the first club from the south of England to join The Football League, in 1893. They entered the First Division in 1904, and have since accumulated the second most points. Relegated only once, in 1913, they continue the longest streak in the top division. In the 1930s, Arsenal won five League Championships and two FA Cups, and another FA Cup and two Championships after the war. In 197071, they won their first League and FA Cup Double. Between 1988 and 2005, they won five League titles and five FA Cups, including two more Doubles. They completed the 20th century with the highest average league position.

What was Arsenal's league position ranking at the end of the last century?
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A:
highest average