Transition words make your writing flow. When you are moving from one idea to the next, a transition is a quick way to help explain how the two ideas relate. Depending on the relationship between the two things you're connecting, you'll use different transitions. Some transitions show contrast; others give examples.
According to this passage, how can transition words help your writing?
Transition words make it clear how your ideas relate.
Transition words make your writing more specific.
Transition words add complexity to your ideas.
Transition words make your ideas harder to follow.