The land in mexico city is subsiding over time. what is the primary cause of this problem? a. too many dams being built along rivers b. deforestation caused by cutting down trees c. too many buildings being constructed d. underground aquifers being overpumped

John locke, an enlightenment-era philosopher, influenced the american movement for independence. locke believed that all people were entitled to natural rights. which quotation from the preamble to the declaration of independence refers to natural rights?

Is when a person has given their consent based on understanding the actions and facts of a study?

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?