• Sound is the transfer of caused by any material. sound is carried by waves, which pulse out from the of the disturbance.
sound waves are waves that need a medium to travel through.
there must be to vibrate fot sound waves to travel​

Atp is is our little "pocket" of energy. of course, if you have too little, then it means you have too little energy, and you'll pass out. the way to not have enough, is to have no energy sources (glucose, fats, proteins). you can't have too many atp molecules. cycles like the krebs cycle produce it, but if you have too much of any substrate (or too little for that matter), the cycle stops and atp is no longer made (it stops until substrate levels are such that the process can go on). in any case, this is unlikely since atp is constantly hydrolyzed and remade, even while you're asleep. you won't have too much. if you have zero, you are dead or dying.

We are not able to see the stars. light prevents our seeing the stars. i hope it kinda : )

The answer is hilum.