<span> is a declaration adopted by the </span>United Nations General Assembly<span> on 10 December 1948 at the </span>Palais de Chaillot<span> in </span>Paris<span>, </span>France<span>. The Declaration arose directly from the experience of the two world wars. The full text is available on the </span>United Nations<span> website.</span>
The advantage of using the video in the explanation of the Harmonica is that it would show the learner the ways to go about playing.
The disadvantage is that there would be no one to explain certain things or help you when you have questions.
<h3>What is the Harmonica?</h3>
This instrument is referred to as the French harp. It is a mouth instrument that is used for playing musical sounds.
Read more on music here: brainly.com/question/20410080
21 is the answer just line them up or up to down and add with your fingers
