Given density and temperature, change temperature find density?

Yes, you can if you know the mass. Most often, however, the question is couched in terms that can be calculated by the Ideal Gas Law (PV = nRT) and then you have to know the molar mass.

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.