hemistry is the "scientific study of matter, its properties, and interactions with other matter and with energy". ... It is an experimental science in which theories are developed and tested against observations. The goals of physics include explaining and predicting how the universe works. Biology is the study of life.
 
        
                    
             
        
        
        
Humans obtain nitrogen by eating other organisms.
        
                    
             
        
        
        
The correct answer is option C
Reason: 
The Earth's magnetosphere is the outer space in the space which it occupies and thus its existence over pole is a wrong statement 
 
        
             
        
        
        
ANSWER
A water molecule consists of one oxygen atom bonded to two hydrogen atoms by covalent bonds. Since oxygen is more electronegative as compared to hydrogen atoms, the shared electrons are attracted towards the oxygen atom. This imparts partial negative charge to the oxygen atom and partial positive charge to hydrogen atoms. The overall effect is making the water molecular a polar one. The presence of free hydrogen atoms makes water molecule to form hydrogen bonds with other water molecules and with other polar molecules. 
explanation: what i found on google