Question

Which of the following sounds cause noise pollution?

• A. Barking of a dog.
• B. Chirping of a bird.
• C. Music from a violin.
• D. Vehicular horn.

Answer 1

Answer: (A), (D)

The correct options are
A Barking of a dog.
D Vehicular horn.

Chirping of birds and sound from musical instruments like violin, flute etc, are considered to be pleasant. While the sound of a dog barking and of blowhorn from vehicles is considered unpleasant for us. Such unpleasant sounds are called 'nuisance' and they are contributors to noise pollution.