Answer:
With this, we can also achieve reduced waste production. Apart from the clearly known sources of pollution, recent times have also seen the negative effects of chemicals, pesticides, radioactive wastes. There are growing concerns about Ozone depletion, global warming, greenhouse effect and climate change.
 
        
             
        
        
        
Vestigial usually refers to traits which over evolution have lost their main function and are less useful than they once were. 
In number one Hunter means that he thinks the teeth were from the ancestor whale shark but are now useless or nearly useless to the current whale shark.
        
             
        
        
        
Three They are all pretty un-important to the rest of the story. Why didn't you just google this?
        
             
        
        
        
Answer:
it reveals that he is straightforward and to the point about what he's talking about. so basically so sugarcoats
Explanation:
 
        
                    
             
        
        
        
Since Amy Tan's mother, who is a non-English speaker, receives a rude treatment from the doctor, it depicts a certain discrimination towards those who could not speak English against those who can whether an accent is present or not. It was confirmed when the doctor became polite to Tan when she spoke English.