Answer: I believe it's the fact it used and does still display music videos on tv for "free", or the fact it streamed the most famous songs on it so people could go to their channel and listen to music / radio (but with music videos) at home.
Explanation:
James brown is the answer
The Mound Builders used metal tools, and were probably metal builders. Based on that information I would say the answer is B.Copper, because copper is a metal.
Answer:
Proper grooming and professional appearance are important to gain not just a positive impression but also respect in the workplace. First impressions matter and the way employees look and carry themselves create impact with customers, and potential clients.
Answer:
Music is an art form that can speak to anyone in the world, no matter their race, religion, culture, etc. It can bring people together on an emotional level and break down barriers between people. It can speak to people in a way that cannot be found anywhere else.
For the part of your question on raising awareness for a social cause, I would point to examples like "Do They Know It's Christmas?", "Imagine", and "We Are the World". All of these songs bring light to issues that were plaguing the world at the time and get the message to entire generations of people.