What is an example of a economic pull factor that could encourage a person to migrate

Which of the following was a difficulty faced by the ottoman empire in the 1700s and 1800s?   a.  financial independence      b.  lack of trained artisans      c.  refusal to trade with other nations      d.  rebelling ethnic groups

How did the relationship impact the desire of christian nations in the iberian peninsula to spread christianity?

Describe some effects of the rise of communism in the soviet union?