WILL GIVE 25 POINTS AND BRAINLIEST 1. What were some of the most important contributions to the Qin dynasty and how did Emperor Qin rule?

2. How does supply and demand work? What does scarcity mean? What is opportunity cost?

3. How does the dynastic cycle explain the rise and fall of empires?

All three need an answer so PLEASE HELP I NEED THESE ANSWERS ASAP-

the graph shows the spread of railways in the 1800s.

based on the graph, the conclusion that can be drawn about germany is answer d)   by 1880, germany had more rail lines than great britain and russia.

roosevelt essentially took the opposite approach as hoover in taking on the great depression. herbert hoover thought that america and its economy could naturally recover from the depression in due course, so he adamantly restrained the federal government from intervening on behalf of the people affected. on the other hand, roosevelt dramatically increased employment by expanding the federal government and establishing agencies that would aid in relieving some of the country's worst problems.

the punic wars had a number of important impacts to the roman society and politics. by 164 bc, rome was a very different country then before the punic wars that saw immediate and long term effects. some changes that occurred included a shift in political influence and wealth to the senatorial class, peasant community dynamics were changing with many moving to the cities, while work and food became scarcer. the wealthy benefited, with their lifestyles becoming more luxurious through the roman cultural exposure to greek influence. from this stemmed a new social climate that emerged after the many years of warfare.