How do you determine the focus of a commercial vs. a Psa?

The focus of a commercial vs. a Psa is given below

Explanation:

1.A commercial is an advertisement that airs for a specific amount of time and is paid for by a company. It is that company's intention to invest in the ad to entice people to buy. Public Service Announcements or PSA's on the other hand, are run on TV for free.

2.A Public Service Announcement (PSA) is a free “commercial” for a non-profit organization. It is aired voluntary by individual radio and/or TV stations. But To The Audience To the audience, a PSA is just another commercial.

3.A public service announcement (PSA) is a short, community-oriented message that radio stations air at no cost in order to fulfill their obligation to serve the public interest. ... Radio stations receive PSAs as audio files – typically recorded as :30 or :60-second messages.

there is no possible way mgk stands a chance with the greatest white rapper of all time. eminem killshots had more bars than rap devil and the reason mgk is doing all this is cause he not getting attention anymore til the release of rap devil and the disses he is putting on eminem. now rap devil was more fire than killshot so mgk might won the battle with rap devil but eminem won the war with killshot.

muslims control the north africa during the period of 1500 up

to 1800. they made a barrier to prevent further european exploration from

entering the africa from the north. however, the dutch ware still able to move

toward the interior with having south africa as one of the routes leading to

the east for trading with asia.