~Hello there!
Your questions: The rare Earth elements include ___________________.
Your answer: There are many Earth elements but some of the rare elements are the following as mentioned:
1) Gadolinium
2) Holmium
3) Yttrium
4) Promethium
5) Samarium.
Note: These are some of the rare Earth elements, there are MANY rare elements that are found in Earth.
Any questions ^?
Happy Studying!