Why do northern and southern hemisphere have opposite seasons?

Because even though in the northern hemisphere it's summer in the southern hemisphere its winter because the tilt is changing the seasons in the hemispheres because of the sun and earth's tilt.

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.