<span>The answer to your question is false</span>
        
             
        
        
        
The answer is an open system
        
             
        
        
        
Answer:
Option D, Zinc is higher on the activity series because there is clear evidence of a reaction.
Explanation:
It is very clear that a metal which is higher in activity will replace a metal having lower activity.  
Since, Zinc has higher activity than copper, it is very sure that it in a copper chloride solution it will replace copper and produce zinc chloride solution leaving behind copper as residue.  
Residues of copper is a clear evidence of reaction  
The chemical equation for this reaction would be -
 
Hence, option D is correct
 
        
             
        
        
        
Catalase.is an enzyme in the liver that breaks down harmful hydrogen peroxide into oxygen and water.