Answer:
The Soviet Union and the U.S. were primarily responsible for the Cold War because they were the two biggest superpowers of their respective government and economic types. The United States was the best Capitalistic and Democratic country, while the Soviet Union was a Communist government. This led to proxy wars between the two, most notably the Vietnam War.
The answer is B: More people began to read and write arabic
For PLATO:
Maya: Created hieroglyphic writing system
Developed the accurate calendar systems
Constructed Chichen Itza
Aztec: Built Tenochtitlan
Sustained 20mil population
Grew floating gardens
Answer:
Option: An imperial eunuch who was put in charge of Chinese voyages into the Indian Ocean
Explanation:
Zheng He is known to be a great Chinese explorer and trader who helped China in getting power over the Indian Ocean in the 15th century. He became fleet commander under Ming Dynasty. He went to several expeditions and opened trading connection with South Asia, modern-day Indian, Sri Lanka, Java, and Sumatra.