Which biome covers the biggest region of earth? a)grassland b)forest c)marine d)desert

Ocean waves move up and down in circles, but transmit horizontally toward the shore.

What makes a dominant allele different from a recessive allele

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?