What is one way to limit college tuition cost? a. take a summer and winter courses b. take fewer courses per semester c. seek out government d. seek out state loans

What are the main functions of the human skeleton? a exchange of gases b support and movement c sensing the environment d digestion and excretion

Is the universal urge to strive for perfection in order to overcome feelings of inferiority. a. pleasure principle b. striving for superiority c. collective unconscious d. reality principle

Why are radio observatories located in valleys far away from urban centers? a. to shield them from electromagnetic interference b. to avoid sound pollution c. to avoid disturbing people living in the city d. to shield them from water vapor