Juan and Giancarlo Are Opera Singers

question 58

Multiple Choice

Juan and Giancarlo are opera singers.Juan is a tenor and Giancarlo is a baritone.Tenors sing with higher-pitched voices than baritones.With respect to this fact,the sound waves corresponding to Giancarlo's voice are lower in ________ than those corresponding to Juan's voice;that is,they are lower in________.

• A) frequency; hertz
• B) frequency; decibels
• C) amplitude; hertz
• D) amplitude; decibels

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