Answer: a.  decreases the present and future risk to human properties
Explanation:
Properties along the coasts can be in danger when high tides come in. This can however be mitigated by walls protecting those properties as it would take a significantly high tide (flood proportion) to scale those walls and come in and damage the property. 
These walls therefore not only decrease the present risk to human properties but if maintained, decrease the future risks as well. 
 
        
                    
             
        
        
        
Answer: i'm pretty sure that the bottom one goes with the second one on the right
Explanation:
 
        
                    
             
        
        
        
Monosaccharides. mono = 1
        
                    
             
        
        
        
Answer:
water would not form hydrogen bonds between H20 molecules
 
        
             
        
        
        
Most commonly the cell<span> changes to a more specialized </span>type<span>. </span>Differentiation occurs <span>numerous times during the development of a multi cellular organism as it changes from a simple zygote to a complex system of tissues and </span>cell types<span>.</span>