Q.1 Choose the correct answer.
Sound can travel through
(a) gases only
(b) solids only
(c) liquids only
(d) solids, liquids and gases

(d) solids, liquids and gases

EXPLANATION

Sound requires a medium to travel from one point to another. The medium can have particles of any state i.e., solid , liquid , gases which can transmit the vibrations of a particular sound wave.