The best answers for this would be the following:
 
 to protect the health and safety of consumers
 to ensure that competition is fair to guarantee that all businesses will make money
 
<span>These are most of the advantages that mixed market can do to the economy.</span>
 
        
                    
             
        
        
        
Answer:
1. gerund phrase
2. the second choice (i think)
Explanation:
 
        
             
        
        
        
Answer: Electron
Explanation:
Two type of microscopes that are used to view cells are optical and the electron microscopes.
The optical microscope, is also called the light microscope, and it uses visible light and lenses to magnify small objects and make them bigger. It is used in viewing cells as they appear big.
Electron microscope gives a high resolution images of specimens. The electron microscope is used in medicine to investigate tissues, cells, etc.