My first guess is because they were attacked by foreign invaders.
(but at the same time, both empires had split in their own way. The Han empire lost control and broke into different areas. The Roman Empire had become two parts, where the Western part was constantly attacked by Germanic tribes). Both sides were constantly attacked by invaders until there was no more land to take.
The type of art with no visible subject is abstract art
Answer: B, signing of a security pact with axis nations.
Explanation: Isolationism is a policy of isolating (a country) from other foreign affairs. When the US did this, the government had to create a security pact.
Answer:
Yellow journalism was used to blame the Spanish for the explosion on the USS Maine, when it was actually an internal mine which blew up the ship.
Explanation:
<span>C. to grind grain into powder that could be used for other purposes
Hope this helps!</span>