Why are decomposers important?
they break down dead and decaying organic material.
they return nutrients and elements to a usable form in the environment.
they consume the most energy of all the trophic levels.
both a & b are correct.

Both A and B are correct. 

The need activity of the nurse is to suction discharges from the trachea. current treatment approaches in the pressing consideration facilities or crisis offices are corticosteroids and nebulized epinephrine; steroids have demonstrated advantageous in extreme, direct, and even gentle croup. in the clear instances of croup, anti-microbials are not endorsed, as the etiology is viral

Ten percent of energy is transferred from sun to the level indicated.