1. How do we compare different countries or states with each other. What are the various indicators for it?
plz answer it fast, and the answer should be more than 100 words at least

How has the immigration of the 1990s affected the social and economic life of the united states?

The patriot act made it easier for law enforcement agencies to conduct surveillance under certain circumstances true or false

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?