Which layer of the profile determines the color of the soil? A. Topsoil

B. subsoil

C. organic

D. bedrock

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?

During a fierce storm a large number of tall trees on an island are uprooted by the wind and die. most of the trees on the island are now short trees and produce seeds that grow into short trees. what concept is shown in this example? question 5 options: natural selection artificial selection genetic engineering gene splicing

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.