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Advances were made in irrigation and farming, using new technology such as the windmill. Crops such as almonds and citrus fruit were brought to Europe through al-Andalus, and sugar cultivation was gradually adopted by the Europeans. Arab merchants dominated trade in the Indian Ocean until the arrival of the Portuguese in the 16th century. Hormuz was an important center for this trade. There was also a dense network of trade routes in the Mediterranean, along which Muslim countries traded with each other and with European powers such as Venice, Genoa and Catalonia. The Silk Road crossing Central Asia passed through Muslim states between China and Europe.
Where did Arab merchants dominate after the 16th century?
A: unanswerable

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Amateur football is governed by Football Canada. At the university level, 26 teams play in four conferences under the auspices of Canadian Interuniversity Sport; the CIS champion is awarded the Vanier Cup. Junior football is played by many after high school before joining the university ranks. There are 20 junior teams in three divisions in the Canadian Junior Football League competing for the Canadian Bowl. The Quebec Junior Football League includes teams from Ontario and Quebec who battle for the Manson Cup.
Which organization oversees amateur Canadian football?
A: Football Canada

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At high altitudes, Neptune's atmosphere is 80% hydrogen and 19% helium. A trace amount of methane is also present. Prominent absorption bands of methane exist at wavelengths above 600 nm, in the red and infrared portion of the spectrum. As with Uranus, this absorption of red light by the atmospheric methane is part of what gives Neptune its blue hue, although Neptune's vivid azure differs from Uranus's milder cyan. Because Neptune's atmospheric methane content is similar to that of Uranus, some unknown atmospheric constituent is thought to contribute to Neptune's colour.
What is Neptune's atmosphere never made of?
A: unanswerable

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The immediate nationwide uprisings against the new government began by the 1979 Kurdish rebellion with the Khuzestan uprisings, along with the uprisings in Sistan and Baluchestan Province and other areas. Over the next several years, these uprisings were subdued in a violent manner by the new Islamic government. The new government went about purging itself of the non-Islamist political opposition. Although both nationalists and Marxists had initially joined with Islamists to overthrow the Shah, tens of thousands were executed by the Islamic government afterward.
The new Iranian government following the Shah's downfall dealt with the Kurdish rebellion in what year?
A:
1979