Discover all the facts with this question-and-answer guide. Have you ever wondered how old the Earth is, or why the dinosaurs died out? These questions and many more are answered in this series.

 

This book is part of a book series called Hot Topics .

There are 32 pages in this book. This book was published 2003 by Pavilion Books .

The Unknown Adventurer is still believed to be at large in the wild.