Answer:
sorry I do not understand the question
The main importance of the oral tradition of reciting poetry is that it allows for stories to be passed down from generation to generation--stories that often tell important lessons about how societies were formed.
This map shows various countries in East and Central Asia. China is represented in green. Letter A is Russia; letter B is Mongolia; letter S is India; letter E is Nepal; letter F is Buthan; letter G is Bangladesh; letter H is Laos; letter I is Vietnam; letter Q are North and South Korea; letter R is Japan; letter M is the Yellow Sea; and letter L is Taiwan.
The appropriate answer is B. steam boats could travel against the current on a river. This statement means that steam boats could travel upstream. The steam engine in steam boats allowed them to travel upstream possibly against a strong current. Sail boats rely on wind or the downstream flow of the water to move it from one location to the other. The invention of the steamboat revolutionised transportation of goods and people on large navigable rivers.
The two most important mining colonies of the Spanish Empire were Peru and Mexico, who were estimated to have provided one-hundred thousand tons of silver from the mid 16th Century to the end of the colonial period in 1824.