Giving brainliest Which part of the body connects the bones together and prevents them from rubbing against each other?

Blood
Cartilage
Muscle
Spinal cord

According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?