Transportation.
Carbon dioxide.
Quicker easier travel.
Answer:
You kind of already got the answer but if you didnt realize it i will repeat it.
It caused High Gas Prices and Oil Shortages.
D.retreating to one’s own “corner.”
The territories were very spead out, making it difficult to rule the empire.
D. By having the three different branches selected in three different ways, the founders were mixing different government styles. This allowed "everyone" to feel as if they could influence government.
