The type of connection that shows how ideas are similar or different is "comparison and contrast."
The type of connection that shows how ideas are similar or different is called "comparison and contrast." To determine this, you can look for clues in the question itself. In this case, the word "similar or different" suggests that we are looking for a way to compare and contrast ideas. Each option given, such as cause and effect, chronological order, and problem and solution, represents different types of connections. However, only "comparison and contrast" specifically addresses the idea of similarities and differences between ideas. Therefore, the correct answer is "comparison and contrast."