Why is a food web a better description of feeding relationships in a community than a food chain

What do nitrifying bacteria convert

Which statement best describes how the loudness of the sound affects the high-pressure region created by the sound wave? a. a louder sound has no effect on the pressure created. b. a louder sound means a high-pressure region that is higher. c. a louder sound means a high-pressure region that is not as high.

Which soil would most likely be found in the arctic? andisols gelisols histosols spodosols