Answer:
Healthy fingernails are smooth, without pits or grooves. They're uniform in color and consistency and free of spots or discoloration. Sometimes fingernails develop harmless vertical ridges that run from the cuticle to the tip of the nail. Vertical ridges tend to become more prominent with age.
 
        
             
        
        
        
Answer:
Water
Explanation:
You cannot survive long without water.
 
        
                    
             
        
        
        
Answer:
The obesity rate has gone up which ha lead to problems such as diabetes.
Explanation:
With fast food growing, more people are eating unhealthy food which leads to obesity. This in turn can cause diabetes.