Consider the following classifications:

grizzly bear: ursus arctos
polar bear: ursus maritimus

what do the scientific names of the grizzly and polar bears tell about their similarity to each other?

How do you date a sample of rock that you suspect as being one of the earliest on earth

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion

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?