Copernicus should be the topic, and the central idea should be how he came up with the heliocentric theory. I hope I helped, please tell me if I am incorrect or if you need more help!
Skim the passage and find key words. if you have a word bank or vocab list, find them and highlight or underline them. look for repeating words and try to figure out why they appear often. usually the repeating words are important to the passage.
That would be terrible, like every one would be taking an alternative entrance
I think he argues that school is not a platform for free speech?