Hi! Please help. Is it living or nonliving?

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?

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?

How can we use spectral lines of light coming from the superclusters to identify which is receding from earth at the slowest rate.