The sea floor near the east coast of the us is about how old?

What are some possible short and long term medical concerns for crew members on longer space exploration trips

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?

The third stage of cellular respiration is (2 points)