It was the Aryans or in other terms German race of people were to be like the masters of other races, other races than that were inferior to him and something like that is like a fly on your food, u want to get it off so same with Hitler, he killed lots of Jews, families, homosexuals, and more since they weren't part of his race.
Answer:
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.
Explanation:
I don't really know that much about history but I will try my best to help you