Answers are below the exercise:
Su Wu (140 B.C.E. - 60 B.C.E.) was a diplomat and statesman during China's Han Dynasty, and a famous figure in Chinese history remembered for his faithfulness to his mission and his empire.
_____ (Q) When they arrived at the headquarters of Chanyu Qiedihou, Su’s deputies, Zhang Sheng, and Chang Hui, hatched a plot to assassinate Chanyu Qiedihou's half-Chinese adviser Wei Lü and kidnap the Chanyu's mother.
_____ (R) He remained there for nineteen years under the most difficult circumstances, steadfastly refusing to yield to the Xiongnu, until the Han and Xiongnu were again at peace and the Han Emperor negotiated his release.
_____ (S) In 100 B.C.E., during a brief truce with the Xiongnu, Emperor Wu gave Su, then a Han scholar and the deputy commander of the Imperial Guards, credentials (often depicted as a staff with a banner on it) and sent him as an emissary to Xiongnu.
_____ (T) His main responsibility was to return some Xiongnu emissaries to their home, and bring back some Han emissaries then being held captive by the Xiongnu.
_____ (U) The Chanyu learned about the plot, killed Yu and captured Zhang, but Su, who was innocent, refused to surrender and cooperate with the Xiongnu, and was sent into exile as a shepherd in the wilderness.
Our species is an African one: Africa is where we first evolved, and where we have spent the majority of our time on Earth.
_____ (Q) What set this in motion is uncertain, but we think it has something to do with major climatic shifts that were happening around that time—a sudden cooling in the Earth’s climate driven by the onset of one of the worst parts of the last Ice Age.
_____ (R) According to the genetic and paleontological record, we only started to leave Africa between 60,000 and 70,000 years ago.
_____ (S) Although earlier fossils may be found over the coming years, this is our best understanding of when and approximately where we originated.
_____ (T) This cold snap would have made life difficult for our African ancestors, and the genetic evidence points to a sharp reduction in population size around this time, in fact, to fewer than 10,000.
_____ (U) The earliest fossils of recognizably modern Homo sapiens appear in the fossil record at Omo Kibish in Ethiopia, around 200,000 years ago.
Answers are below:
Su wu ------> 3,5,1,2,4 Q=3, R=5, S=1, T=2, U=4
Genetic migration ----> 4,3,2,5,1