Answer:
1. You can see social structures in schools like teachers, staff,ect. Communtities such as law enforcers, fire department ect. And Government Building Such as Federal agents, President,ect.
2. The positive is that if you're high, you get more benefits and luxuries.The negative is that the low are treated unfairly. Sometimes it can become corrupted/ fall into the wrong hands like drug dealers, ect. and be used against the country
Even though the human race is essentially the same as we are all humans, different people have different biological races. There are many types of human races and each race depends on the backgrounds of the parents, where they live in the world and their ethnicity. So, <span>"biological race" is an evolutionarily valuable way to describe human variation. </span>
In the period of the Sui Dynasty (581-618 AD), Chang’an before was named Daxing. However, in a later time, the city got new reformations and innovations and was renamed Chang’an by the Tang dynasty administrators which then served as the Tang capital until its collapse in 904 AD.
This ancient imperial capital was the eastern commencement point of the Silk Road. The Silk Road has been of an enormous importance to the trade and cultural exchange to Xi’an (formerly Chang’an) as well as important crossroads for people from entire China, middle east, Rome, and Central Asia. The city thus developed into a hub of diverse ethnic recognition and religious beliefs.
In addition to the above, the tang dynasty manifested a tremendous cultural and religious fluorescence when it grew into a Buddhist learning center and also Taoism, attracting many pilgrims, and other scholars as well as philosophers. This didn’t end only with Buddhism, many other faith denominations emerged such as Nestorian Christianity, Zoroastrianism and Manichaeism, and later Islam.
therefore, the factors that made the tang cipital of Chang'an a center of culture and trade were mainly A and C; It welcomed foreigners and their beliefs, it was located at one end of the silk Road.