It's the first choice.Correlation that implies causation
        
                    
             
        
        
        
The temperature change from 6am to noon is 11°c
        
             
        
        
        
Any unknown number in an equation you represent with a variable
        
                    
             
        
        
        
Answer:


Step-by-step explanation:
Given
See attachment for complete question
Required
Express the answer in 
From the question, we have:

 breath/person in a year
 breath/person in a year
The number of breath is calculated by:

So, we have:

Reorder



Using scientific notation  ;
;
The value (a) must be in the following interval 
So, we have:


By comparing the above with: 

