Implications of growing population?

Regarding most of the narrator’s story, which word best describes the tone?

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?

Which substance contains thylakoids? a) nadph b)atp c)stroma d)chloroplast