The answer for this question would be True.
Because it gives off rays which can be called signals. Hope this helps
The actions that are effective ways of preparing for a presentation are: Asking others to listen as you practice and Thinking positively.
When preparing a presentation, it is important that advance preparation be made.
This will help the person making the presentation to think ahead and consider the needs of his audience during the preparation of the presentation.
Thinking positively will also help the presenter to prepare quality content.
Learn more about presentations here:
brainly.com/question/24653274
The "time signature" at the beginning of the piece tells how many beats there will be in each measure, and what size note will receive one beat. From there on, all the different size notes in the piece are figured from that. It can even change during the piece, but if that happens, then there has to be a new time signature at the place in the music where it changes.