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Good (the time like morning,evening,etc) to one and all present here i am (your name) .Today i will be presenting before you a video show on sound. We know how sound is a important factor in our life , we can see different aspects of sound in our life today in this show of sound you will see how sound is important,how it can be dangerous, and at last you will be given a tip to how to use sound to save your life. Show enough of talking now let us begin the show ..!!
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