From all the aforementioned, significant periods in Chinese history were marked by the: Shang, Qing and Xia. The answer to your question us 1, 4 and 5. I hope that this is the answer that you were looking for and it has helped you.
Answer:
A. Distance and Time
Explanation:
The formula to calculate speed is: 
, where d is distance, and t is time.
Answer:
I believe the answer is D
Explanation:
Lee decided to surrender his army in part because he wanted to prevent unnecessary destruction to the South.
The situation that caused stress on public services offered in American cities during the late 19th century and early 20th century was: Migration from farms to cities.
Migration from farms to cities massively increased the number of population that should be eligible to obtain government benefits in that area destination. This lead to an increase of work load for government workers in that period and caused stress on public services offered by the cities.
