Jamariz farted in class yesterday. Kevin smelled it first because he sat next to him. However, Brian didn’t smell it for a minute because he was sitting far away. Explain why some people smelled it before others using what you know about the motion of gases.

How is it possible for someone to put an ear to a wall and hear someone in the next room?     a.sound waves can travel though solids.    b.the waves travel from room to room via air.    c.there must be some air in the wall so the sound can travel through it.    d.sound waves change to electromagnetic waves and then back again.