16/16 cuz there are blue on a lot of them
        
             
        
        
        
Water molecules would probably be it since they are in water and they are made up of two hydrogen and one oxygen.
        
             
        
        
        
Answer:
one way is It could travel as surface runoff flowing through rivers and lakes until it eventually reaches the ocean. and another way is  it could soak into the ground and flow as groundwater until it eventually reaches the ocean.
Explanation: