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:
A. They also help the environment by refreshing the air and by reducing smog and effects to the ozone layer.
Explanation:
The author makes a claim that environment is refreshing by the air and the effects on ozone layer are reduced. This statement is not supported by the evidence. The ozone layer is polluted by the environment pollution. The pollution created by humans is also affecting the air which ultimately pollutes the ozone layer.
Dryden gives his ideas on the use of poetic language in stage drama in An Essay of Dramatic Poesy. With his 4 characters who represent his contemporaries in literature at the time, Dryden claims that rhyming is more effective then blank verse in drama.
A counter argument you might see is how performance enhancing drugs can benefit in a competition
