Answer:
Steppe nomads would invade the settled communities to take control of pasture lands. Settled communities were in the fear of new or next invasion. The nomad's trade was not related to the gain but related to the goods provided themselves that they don't have that time Nomads were from two different cultures and districts.
Nomads speak a Turkic language. There were many nomads group who traveled on the silk road.
Statements of authority provide the strongest evidence in scientific discussions when they are based on statements that are, "consistent with findings from high-quality scientific research on the subject."
The statements which are based on findings from high-quality scientific research are accurate and so they provide the strongest evidence in scientific discussions.
The Scientific method of research is neutral, objective, rational, and as a result, is able to approve or disapprove the hypothesis. The research method includes the procedure to obtain data and evaluate the variables, and then it obtains analyzable data.
Hence, the statements based on high quality scientific research provide the strongest evidence.
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