1. commercial radio is radio that derives its
operating budget from selling advertising, or
in other words, selling radio commercials.
This advertising income is how the station
pays it business expenses and makes money.
Unlike non-commercial radio, revenue from
other avenues does not play a central role in
the station operating budget.

2. Effect of relying on advertising
revenue
 The effects of adverts is that it tries to persuade the
audience to buy the product.