Arguments, justifications, reasons and examples – all these elements belong to the main body of the paper. Feel free to dilate on the topic in any form you want – asking, convincing, doubting – the method of exposition you choose will eventually define the style of your essay. Beware: if professor needs cause and effect essay, he will not stand lengthy deviations and philosophic diversion, thus don’t go too far and remember that you are writing an academic essay.