How is it possible for someone to put an ear to a wall and hear someone in the next room?

Sound waves change to electromagnetic waves and then back again.

Sound waves can travel though solids.

There must be some air in the wall so the sound can travel through it.

The waves travel from room to room via air.

I WILL GIVE BRAINLIEST!!

In cattle a single gene with two alleles determines fur color the fur can be red white or roan roan fur has both red and white hair which of the following statements is true a the allele for roan fur color is dominant over red and white fur color b the allele for red fur color is dominant over white and roan fur color c the roan and white alleles are expressed independently of the other d the red and white alleles are expressed independently of each other