Question

Fill in the blanks with the proper words.
(a) The propagation of sound does not occur through a ........... .
(b) Noise pollution is a .......... issue.
(c) The sound which is disagreeable to the ears is called..... .
(d) Noise has adverse effects on our .......... .

Answer 1

(a) The propagation of sound does not occur through a vacuum.
(b) Noise pollution is a social issue.
(c) The sound which is disagreeable to the ears is called noise.
(d) Noise has adverse effects on our health.