Question

class 8 give reason ​

Answer 1

Answer:

1. A vacuum is an area without any air, like space. So sound cannot travel through space because there is no matter for the vibrations to work in.
2. In general, women speak at a higher pitch as compared to men.Men's voices are generally deeper because the surge of testosterone released during puberty causes their vocal cords to elongate and thicken.

Answer 2

Answer:

reasons are given below

Explanation:

1) sound cannot travel through vaccum because sound is formed by the vibration of the particals in the medium like air , water , etc and vaccum is defined as the empty space in which there is no matter of particles .

2) because of vocal cords are responsible , men have longer vocal cords than women