Answer:
Valuable is having monetary value or has emotional importance. I don't understand what you mean by "why"...
A china because i said so
The text feature that most likely would help Liam is "pronunciation guide". However, since he is looking for the name of a dinosaur, Liam should take into account that he needs a pronunciation guide of the Latin language. Scientific names are given by Latin roots, so the name of a species is pronounced in Latin.
