If used the right way, a question can be an effective tool for engaging your reader and by involving them in the topic that you were discussing. One is skilled in rhetoric; the other less so. Despite the contrasting views, there is really no harm in concluding your essay with a question as long as you use it in the right way.
Need an essay or paper? Shakespeare uses both the meter and structure of the sonnet to maximise the effectiveness of this metaphor.
I have collected both primary and secondary sources to prove it. Just read the book carefully to get to the main idea. The essay conclusion takes the contents of a fairly bog-standard, elementary literary-critical argument and makes them seem exciting and relevant. Some think that it is a good idea since it will engage the reader while others think that it is totally a bad idea.
Apologizing for your view by saying such things as "I may not be an expert" or "At least this is my opinion. What kind of sanitation and waste facilities does the property have?
Every university instructor has encountered an essay where a student has copied and pasted, almost word-for-word, their introduction at the bottom of their essay. But shorter essays tend not to require a restatement of your main ideas.