Available Answers

1. 1.

   List any five pleasant and unpleasant sounds each, from your day-to-day life.

2. 2.

   Tick (√) the correct option.

   1. Which of these is a soft sound?
      1. Child whispering
      2. Beating of drums
      3. Honking of a car
      4. None of these
   2. The sound produced through the mouth is called _________________ .
      1. noise
      2. voice
      3. warning sound
      4. none of these
   3. Which of these makes a warning sound?
      1. Guitar
      2. Violin
      3. Car
      4. Ambulance
   4. Which of these is a result of noise pollution?
      1. Hearing loss
      2. High blood pressure
      3. Stress
      4. All of these
3. 3.

   State True or False.

   1. Living organisms do not make sound.
   2. Fire alarm warns us about a fire outbreak.
   3. An ambulance does not carry a siren.
   4. Bursting of crackers is a soft sound.
   5. Silencers should be fitted inside vehicles.
4. 4.

   Give two examples of each:

   1. Soft sound
   2. Loud sound
5. 5.

   Name two musical instruments.

6. 6.

   Give two examples of pleasant sounds.