The filters media determines the level or quality of filtration that a filter provides. Pleated filters provide two advantages over unpleated filters (1) pleating provides more surface area to a filter, which is one way dirt holding capacity is increased in a filter (2) pleating also helps distribute the air flow over the surface of the filter more evenly. More.
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.