sound is a mean of water & when sound assembly a reflective preposition , that sound levers off that preposition ->  when light wave hits a reflective object, the light wave bounces off that object  when light wave hits a reflective object, the light wave bounces off that object & two is when a water insect off a bottom and slides in the synonym magnitude unlimited to the side of first ->  when light wave hits a reflective object, the light wave is reflected  when light wave hits a reflective object, the light wave is reflected & a genetics is a mean of reflective preposition -> when light wave hits a mirror, the light wave will be reflected