Answer:
Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct.
Explanation:
 
        
                    
             
        
        
        
Answer:  
It won't let me type this for some reason but here it is.
 
        
             
        
        
        
Answer:
Ammonia, urea, uric acid
Explanation:
The given compounds are:-
Urea which has a molecular formula of  and has 2 atoms of nitrogen per molecule.
 and has 2 atoms of nitrogen per molecule.
Ammonia which has a molecular formula of  and has 1 atom of nitrogen per molecule.
 and has 1 atom of nitrogen per molecule.
Uric acid which has a molecular formula of  and has 4 atoms of nitrogen per molecule.
 and has 4 atoms of nitrogen per molecule.
Thus, 
The order from least to most nitrogen is:-
Ammonia, urea, uric acid
 
        
             
        
        
        
The answer would be balanced