Question

Hello giys please help me wiyh this question
1.Sound travels
a.the faster in air
b.the fastest in vacuum
c.faster in air than water
d.faster in solids than air
2.The decibel is a unit that measures?
3. Women are more high pitched than men because their vocal are
a.tauter
b.are shorter
c.thicker
d.vibrate less
4.The ceilings of threatened are covered with special materials to
a.oncreaae the reflection of sound
b.mimimise the loudness of Sound
c.increase regular reflection of sound
d. increase the loudness of Sound

Note: This is for class 8 if you don't know don't give the answer​

Answer 1

Answer:

hii

1. d.faster in solid than air
2. decibel is unit that measures sound.
3. due to thicker.
4. b .to minimise the loudness of sound