Final answer:
An Additive transition is used when introducing a new idea or connecting one idea to another, helping to maintain the flow of writing by adding information or ideas in a coherent way.
Step-by-step explanation:
When a transition introduces a new idea or connects one idea to another, it is known as an Additive transition. These types of transitions help the writer to add new information or ideas, showing how they relate to what has been said before. They can also indicate a similar line of thought or extend the idea further. Examples of additive transitions include words like again, and, also, and phrases such as in addition and as well as. These transitions help to maintain the flow of writing and guide the reader through the narrative or argument being presented.