What is the world's smallest country?

How many chromosomes are in a gold fish?

Cells are adapted to preform specific functions. which of the following terms refers to this capability?

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?