Answer:
D. The Amazon Rainforest
Explanation:
All in all, the bacterias and mashrooms which are which have a decomposing role in nature, usually, live in humid environments like forests, so I think that the answer would be the option D.
 
        
             
        
        
        
The statement is true. Atelectasis is the collapse or closure of a lung resulting in reduced or absent gas exchange. It may effect part or all of a lung. An airway blockage also can cause Atelectasis. A blockage may be due to a foreign object, a mucus plug, lung cancer, or a poorly placed breathing tube from a ventilator. When a blockage occurs, the air that's already in the air sacs is absorbed into the bloodstream.