Which of the following is an example of hierarchical diffusion?
1. a brand of sunglasses becomes popular after a soccer star is seen wearing them.
2. an illegal immigrant is deported from the united states.
3. many computer makers start to use the same type of user interface.
4. a popular cell-phone ringtone becomes popular around the world.

What is one major goal of us economic foreign policy

By the end of the 1800s, there was a change in the nature of the immigrants coming to the united states. immigration from northern europe—england, ireland, germany, and scandinavia—declined, while immigration from italy, russia, and austria-hungary grew. in fact, between 1900 and 1910, more than three-fourths of all immigrants came from these three countries. unfortunately, these countries were far removed england, the home of our founders, and the immigrants who came from them had a hard time adjusting to life in their new country.

What are the strengths of the byzantine empire?