Plz answer asap! ill give brainiest if you can answer both!

Which entity owns most if the television stations, radio stations, and newspapers in the united states

How has mexico's culture been shaped by cooperation among different people? be sure to name the groups involved in the cooperation, describe the cooperation, and explain how the cooperation shaped mexico's culture

What effect has mass media had on obesity in the united states a. television commercials and programs have promoted increased acceptance of obesity b. public service announcements have halted the increase in obesity c. educational documentaries have caused obesity in the united states to fall d. advertisments for unhealthy foods have encouraged obesity