Answer:
The only  two disadvantages I know is that the photographs when taking them were incredibly sensitive to movement and so they had to sit still for a long time and had to keep their eyes shut. The other disadvantage was that the person taking the photo could have contracted mercury poisoning.
Explanation:
 
        
                    
             
        
        
        
Answer: 1 ocean tides  2 is that you?
Explanation:
brainliest plss
 
        
             
        
        
        
A) a model of the value of goods set by a global market
        
             
        
        
        
Answer:
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