I would say that it depends on the audience. Personally, a debate regarding ethics and moral dilemma is interesting. Read The Fat Man and the Impending Doom. It's just one paragraph so it's not going to bore audience.
https://thedailydilemma.wordpress.com/2007/06/18/fat-man/
I believe that this type is a lecture-forum discussion.
Answer:
It existed for the sole purpose of killing jews and other "undesirables". i.e. people with disabilities, homosexuales.
Explanation:
Crows are very good hunters and could hide very well as well as get it’s food very fast as well
The statement which best describes the mistake the writer makes in the paragraph is the following one:
The writer loses focus and shifts to another topic.
He starts off by pointing out the overall benefits of exercising, and supports his idea by also giving examples of activities people should engage in. However, focus is lost when the writer begins to address the importance of a balanced diet to the body. That would require a new paragraph.