Think :

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Sound is a boon as well as a bane:

● Without sound we cannot transfer information from one person to another. We can express our views through our words.

● In many scientific fields, sound is used such as SONAR, stethoscope etc.

● It helps in the navigation of traffic for example the vehicles can sound the horn to alert the other vehicles about their approach.

● Movies and music are a source of entertainment based on sound.

● Sometimes sound causes noises which are unpleasant to hear and causes noise pollution.

● Loudspeakers are a bane as it creates noise which can lead to hearing impairment and disturbance to heart patient.