Answer:
Validity
Explanation: validity shows an indication of how sound your research is. Specification speaking , it applies to both the design and the methods of your research. When considering data collection validity means that your findings truly represent the situation you are claiming to measure.
Silk Road:
The Silk Road specifically refers to the trading land routes that connects East and Southeast Asia to South Asia and Persia followed by Arabian Peninsula, East Africa and finally Southern Europe.
This network was regularly used from 130 BCE and part of that road is still in existence as a paved highway that connects Pakistan and the Uygur.
Chinese are the one who first started trading in this road and as its name indicates it is mainly used as a trade route for trading silks.
Hence this ancient road played a major role on times when it was constructed.
Answer: Culture and Societies
Explanation: Mobility in the forms of migration and temporary movements between countries and regions expose people to a new way of life and a social structure that is different from their own. Technology shortens the distance between these cultures. The advent of the internet and social media, especially make it possible to share the experiences and social norms of people across the world at the moment they are taking place.
This exposure is what led to the study of sociology, which aims to understand more than just the norms and culture of a place. It studies the factors that create social structures, cause their breakdown, and social patterns regardless of culture.
The answer is, "Sugarcane".
40 percent of Italy's people were enslaved.
