Read the scenario below and answer the question that follows.
revan was excited about working with a group of friends on the next science project. he developed a plan for how the group could most effectively share responsibilities. however, halfway through the project, he realized that no one seemed to be completing their assigned tasks, which led him to complete more than his share of the work. 
based on this information, it is  most likely  that the behaviors of revan’s friends were influenced by  

social loafing 

group polarization 

social facilitation 

groupthink

An externality can be created by a. people working at a production job and enjoying their work b. a production activity but not a consumption activity c. a consumption activity but not a production activity d. a production activity or a consumption activity externalities a. are always positive, and an example is flu vaccinations b. are always negative, and an example is the pollution created by trucks c. can be negative or positive. logging has a negative externality, and education has a positive externality d. can be negative or positive. a negative externality is having to go to school when you would rather go to the beach, and a positive externality is spending time with your friends

This refers to weather and atmospheric conditions measured over a long period of time.

All of the following apply to a company’s stockholders except: a. they make all company decisions. b. they are also called shareholders. c. they may sell their stock to others. d. they are entitled to share in company profits .