The big book of tell me why

How big is the universe? Which ocean is the deepest? How did the English language begin? Learn the answer to all of these and more in: The Big Book of Tell Me Why. It has hundreds of questions children ask, and answers them all concisely in a way that anyone can understand. Even adults will find something they are interested in, with questions like: Why is the ocean so salty? or: When did the ice age end? The book contains wonderful information that everyone will enjoy learning!