Answer:
the population of grasshoppers will decrease 
Explanation:
a food source is becoming more and more limited thus, its predator will also start to die out due to starvation 
 
        
                    
             
        
        
        
A) if you have a period table handy it’s the number in the top left hand corner of the element
        
             
        
        
        
Chemical because it would be impossible to get the evaporated water and turn it back into it's original substance.
        
             
        
        
        
Physical changes happen when you do/mix something that can be reversed. Best example is ripping a paper, you can just tape it back together so it is just an observable thing that changes, which is a physical change. Chemical changes happen when you mix things and they make a new substance and can’t be reversed. The best example of this is the Statue of Liberty, which changed in color due to the chemical change between the oxygen and copper, which created a new substance (rust) which made it green instead of copper.
Sorry for the long answer but hope this helps!
        
             
        
        
        
I would say Ni so yeah thats ur answer