I believe all of the above!
        
                    
             
        
        
        
Its the  Eccentricity of the earth. (shape of Earth's Orbit around the sun, whether it is more circular or ovular.)
        
             
        
        
        
Answer:
Because it was a dead language.
Explanation:
Nobody uses latin anymore.
 
        
                    
             
        
        
        
Answer:
b. 2-4 (somewhat trustworthy; want to check some things)
Explanation:
For to have think of opening the site in my browser, its means i somehow trust the messages on the site. though i may not have full confidence on the site because have not been visiting it frequent. 
the point still remains, the source of information to the link to the site might has well be trusted, therefore i will assume the site is somewhat trustworthy; want to check some things.
 
        
             
        
        
        
Explanation:
if u read the passage then u would know it so i prefer going thru passage and reading questions