To recap, self-interest and competition are very important economic forces. Self-interest is the motivator of economic activity. Competition is the regulator of economic activity. Together they form what Adam Smith called the invisible hand, which guides resources to their most valued use.
Answer:
A. We constructing the great wall in constructing large ships for exploration
Explanation:
1 Majority of the existing Great Wall of China was built in the Ming era.
#2 Seven epic voyages were led by the great Chinese admiral Zheng He.
#3 Ming period saw great development in printing.
#4 The most comprehensive book on traditional Chinese medicine was written.
The Ming Dynasty ruled China from 1368 to 1644 A.D., during which China's population would double. Known for its trade expansion to the outside world that established cultural ties with the West, the Ming Dynasty is also remembered for its drama, literature and world-renowned porcelain.
Child labour was common
the children didnt received education bevause they were workin to support the family
the working day was estremely long and with harsh conditions...
workers didnt had any rights.or.strike...
if u broke a machine u were killed...
C.) It is a secret route that slaves took to escape from Southern slave states to the North. Even though Harriet Tubman started this, it wasn't to help slaves become free it was to help them escape so it's C
