When a person comes to believe that they need a drug, it can be said that the individual is experiencing a. psychological dependence b. withdrawal c. physiological dependence d. tolerance

Are people more motivated to change from positive or negative experiences, like slavery, womens rights, and any other historical movements/moments? i need more factual information than opinions.

What caused the settlement of more african americans in the mississippi alluvial plain region then in the ozark mountains region?

The missouri compromise angered because congress had allowed slavery to expand into another state. 1.) thomas jefferson 2.) northerners 3.) white southerners 4.) henry clay