Need ! explain how the gold rush in the growth and development of california.

Which of the following is an example of the pull factor known as economic migration? a. better educational opportunities pulling people towards a new country b. mexican laborers entering the us to work in agricultural jobs c. joining family members that are already in a new country d. crop failures driving people away from their country i am unsure on this question, i was thinking b? but i could be wrong.

In 150 to 200 words, use evidence to compare the ideas of the abolition of the slave trade and the abolition of slavery

6. how are goods and services distributed in a free market system?