An exposition is a practice of explaining something using elements such as texts, images, table content or a combination of that. A good example of exposition for this case, when you have to make a comparison between two countries, you have to first:
Identify what they have in common, and what they don't. Look at their History, development background, social issues, and what they did in the 19th century that made them similar, and what is the main difference between them, what strongly differ to each other;
Look at the leaders and political ideas. The Monroe Doctrine, the Destiny Manifesto (in the USA); Otto von Bismarck, the unification, the clever use of railroads in Germany;
Many commercials revolving around the adoption of dogs use sad, depressed looking dogs. This is to make you feel sad for them and buy one of their dogs.
