The founder of modern China is Sun Yatsen.
Here's link to the answer:
tinyurl.com/wtjfavyw
Answer:
Friction between the wheels and track causes energy to leave the system in the form of heat.
Explanation:
The correct answer is Rome, Italy. This is because although the name comes from the 19th century, the road system was used as far as 2 BC, meaning that Rome was a great empire then and there is even a saying that all roads lead to Rome. Of course it's different nowadays, but at that point in time it connected those two cities, Chang'an and Rome.
