Your parents tell you to wear earplugs when you go see your favorite band in concert. The earplugs are rated to reduce sound by 40 dB. What will the earplugs do if you wear them? cause the band to sound distorted due to aliasing decrease the loudness of the band decrease the frequency of the band cause the band to sound clearer due to oversampling

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When your using a username and you use the same name for everything your being secure because if someone sites there and uses a few different search engines they wouldn't use just one because they all use differnt web crawlers so they woud have different results. but anyway by typing thag username into those searches they can assume everything they find is probably you because you use the same username for everything.