Nickel is a pure substance
Rust is also a pure substance
        
                    
             
        
        
        
Answer:
D
Explanation:
The proberties of the substances that are produced are different from the properties of the original substances.
 
        
             
        
        
        
One is ocean
Two is green house effect is the trapping of gas in the atmosphere and global warming is the heating of the earth 
Three is option one
        
             
        
        
        
Answer:
In a conventional optical microscope, objects less than about 200 nanometers apart cannot be distinguished from one another. ... Although electron microscopes produce a detailed image of very small structures, they cannot provide an image of the proteins that make up those structures.
 
        
             
        
        
        
It's a table that has elements private message me I send u a pic of it ...