Factories dump waste and chemicals into rivers and oceans and pollute the water. The organisms then will get sick from drinking polluted water and die. Organisms such as fish in the water will also die and organisms that eat the fish will starve to death.
Factories also emit pollution into the skies and affect the air organisms breathe. Factories may cut down forests to get wood and endanger all the organisms living in the forests.
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.