photosynthesis by kenya and keila 
                                                          PHOTOSYNTHESIS
       
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms' activities. 

                                                   HYDROGEN VEHICLE

                 A hydrogen vehicle is a vehicle that uses hydrogen fuel for motive power. ... The power plants of such vehicles convert the chemical energy of hydrogen to mechanical energy either by burning hydrogen in an internal combustion engine, or, more commonly, by reacting hydrogen with oxygen in a fuel cell to run electric motors.

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