Biotic factors of an environment are simply anything alive in the environment. Grass, trees, animals, are all considered biotic. The fact that parasites often dont kill is irrelevant.
        
             
        
        
        
Second and fourth are true because the shape is changed since liquid does not have a shape and the particles are more strong bonded on solids
        
                    
             
        
        
        
Hello,
The answer is option B <span>pneumonia.
Reason:
The answer is B because </span><span>pneumonia is a lung disease that can get you very sick and is not cause by contaminated water. Its not option A because </span><span>schistosomiasis is caused by worms that is in fresh water.Its also not option C because this is a fever caused by bacteria which could be in water.
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit </span>