This is a simple question with a difficult answer that im not going to try to get into detail with because honestly I don't know all the details. Certain things are made what color they are from the sun; like plant life. As im sure you've learned in school the plants turn green from photosynthesis.
I think a better question to ask would be "what would the world be like without color.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.