Brainstorm, draft, reread, revise, edit, final draft.
Conclusions should have a hook, bridge, and call to action and/or summary.
        
             
        
        
        
The human eye is grief in damage of in-depth perception, color recognition, and peripheral vision. Judging speed and distance based on visual evidence is also more difficult in the dark.  In addition, the darkness of night, and even the dimness of dusk and dawn.  
 
        
                    
             
        
        
        
Answer:
Spirometry is a type of pulmonary function test (PFT), a noninvasive procedure that provides important information about how well the lungs are working. More specifically, it reveals how much air is moving through the lungs and how quickly as you breathe through a tube.
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