Question

We can block light by placing obstacles in its path, but it’s much more difficult to block sound. Why?

Answer 1

Sound waves can move through various mediums. Similar to the way we can hear a car horn from outside of a house, the sound waves will, however dampened, still pass through mediums, in this case being the wall of a house. 

Answer 2

B.  

Sound waves can move through various mediums.