What is market research and why do companies need it?

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

To what condition is a stable family life, strong focus on education, and assimilation into the mainstream culture linked for minorities? a. mental well-being b. interracial marriage c. healthier relationships d. economic success

What type of power generation can cause air pollution a. wind b. natural gas c. geothermal d. solar