Question 4 0.5 pts The impact of price floor is surplus C shortage No answer text provided. No answer text provided. Question 5 0.5 pts A positive externality arises when two people (say buyer and seller) engage in an activity that has C a beneficial effect on them C an adverse effect on them C a beneficial effect on a bystander No answer text provided. Question 6 0.5 pts All the goods and services have some sort of positive or negative externality true C false No answer text provided. C No answer text provided