The answer is C both dynaties played an important role
I believe it is the 4th because of the fact that the transportation of goods could now be moved a lot faster compared to what it used to be with steamboat or horseback. For example the south could now sell their corn meal to the northern mills a lot faster than before.
The answer is restrict the freedom of press
Pretty sure the answer is D.
Answer:
a border surrounding the zone of strong gravity near a black hole.
Explanation:
The event horizon is the place where the gravity begins to become so strong no light can escape the gravitational pull of the black hole. The event horizon is also known as "the point of no return" because it is impossible to escape the gravitational pull at that point. Light and matter begin to stretch and be pulled into the center and compressed into the matter that makes up the black hole.