South America : Argentina, Bolivia, Brazil, Chile, Ecuador, Colombia, Uruguay, Peru, Paraguay, Venezuela.
        
             
        
        
        
<span>A blue planet through and through: Earth's largest water reservoir is found trapped 400 miles BENEATH the surface. The Earth's largest expanse of water isn't on the surface of the planet, but instead is buried deep within its mantle, researchers have found.</span>
        
             
        
        
        
Response bias goes toward the 3rd one and question wording goes to the 2nd