changes of state are physical changes. they occur when matters absorb or loses energy. processes in which matter changes between liquid and solid states are freezing and melting period processes and which matter change between liquid and gases states are vaporization, evaporation, and condensation
 
        
             
        
        
        
The best answer to choose would be — “Weak winds that blow for short periods of time with a short fetch.”
Few factors determinate size of surfing waves:
1The weaker the wind speed, the shorter the wave.
The shorter amount of time that the wind blows, the shorter the wave.
Concluding my statement, and in opposition to the answer, it is the stronger winds along with a long period of time those winds with a long fetch that will be able to make the biggest waves.
        
             
        
        
        
The correct answer is "The oil removed by this structure can be used to power ships."
Oil rigs are positive, effective and direct methods of recovering crude oil. It is a large construction on or in water with facilities to drill wells, to extract and process oil and natural gas, and to temporarily store product until it can be brought to shore for clearing and retailing.
        
                    
             
        
        
        
A general ballpark how one can predict the way how evolution will work in the future would be by thinking about the requirement of a certain area or environment and which changes would be necessary and relevant for any organism to thrive with its new changes. 
This could help people speeden up this process by enabling organisms to develop such traits faster, as well as ourselves.