Of the four philosophers discussed in this article, which two do you think differed the most? Why?

Prices for products became more affordable as a result of new forms of ,witch got things to market faster and cheaper

Martha participates in a research study in order to receive extra credit for her psychology class. when she arrives in the research office she is given a can of what looks and tastes like beer, but which actually contains no alcohol. in the adjoining room martha's classmate karen is also participating in the study. karen receives a can of alcoholic beer. if the experiment was designed to test the effects of alcohol on concentration, then who is exposed to the independent variable?

Why was new orleans destined to be the center of slave trade in the southern united states