Beinging of the one of a kind story

Two technicians are discussing oil changes. technician a says that waste oil and old filters need to be disposed of according to the law. technician b says that old filters can be returned to the parts department for a core value. which technician is correct?           a. technician a only   b. both technicians a and b   c. technician b only   d. neither technician a nor b

Wich of the following is not a receptor pair according to the opponent process theory

An economy that is not using all of its resources would: be operating on the line closer to the vertical axis. be operating on the line closer to the horizontal axis. be operating inside the production possibilities curve. be operating outside the production possibilities curve. be suffering from high inflation.