Answer:
Corrosion Resistance 
Explanation:
aluminum's high resistance to corrosion ensures the safety of the aircraft and its passengers.
 
        
             
        
        
        
Answer:
1. Someone in the United States has a stroke every 40 seconds. 
2. Every year, more than 795,000 people in the United States have a stroke.
3. In the year of 2018, 1 in every 6 deaths from cardiovascular disease was due to stroke.
 
        
                    
             
        
        
        
Answer:
A
Explanation:
1. The colour is non metallic. 
2. properties of metal solidness is not there, because of results of hammer experiment. 
3. Physical consistency is not solid. 
Etc. 
 
        
             
        
        
        
Answer:
Explanation:
Parasympathetic Nervous System. The parasympathetic nervous system is an anatomically defined division of the autonomic nervous system, being that part whose motor components run in cranial nerves III, VII, IX, and X and in the sacral nerves.
 
        
             
        
        
        
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