Hey There!!
1. Romans created statues that were realistic and very much looked like the real person. It's actually True, Romans makes the statue look realistic so the person can get a better understand about that person. 2. An Effgy is sculpture representing a person? That's also true. 3. Well, The Olmec do have a thick lips and also have flatter nose than others. So, I do believe it's true. 4. The conservator actually maintains the condition of the objects. So most likely it's true. 5. Well, I think the answer is A clay vessel.
Hope This Helps!!~
By ☆~Itsbrazts☆~