What are some of the recent developments in global warming

Place the steps tor the formation of the enzyme pepsinogen in correct order

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

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?