Group discussions can also be categorized based on the topic allotted for the discussion to the participants. There are three kinds of topics-controversial topics, abstract topics and case study topics.
hope this helps ^^
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!
Answer:
By guidance and cancelling
a carrot, a biscuit, a potato, a bagel, a bean, an apple
some cereal, some garlic, some cheese, some honey, some bread, some rice
