They were treated poorly because of the same reason the Nazi's treated adult jews; it was because of their heritage. After they were sent into camps, it did not matter how old they were, no one was spared of his wrath.
If you want to know exactly what happened to them with great visuals, I suggest plugging "Children of The Holocaust" into YouTube and finding a great visual explanation to go along with your research.
The Crittenden Compromise did: (Pic)
Hope this helped if so:
PLEASE MARK BRAINIEST
With the development of technology, a lot of electronic waste has been created and it's polluting the environment because such devices are commonly thrown away and there's so many of them. This is combined with the rise in CO2 emission which required numerous countries to join the battle against the climate change. The ozone layer was also heavily damaged but it has been improving in recent years.