Our Planet Earth: Mountains, Forests & Other Ecosystems

How high is the highest mountain? Is there a mountain range under the sea? Why are forests called the lungs of the world? This encyclopedia will answer about these and more hows and whys for you. Learning is made simpler with stunning images, an extensive glossary of difficult words. Bonus: the book comes loaded with Isn' t It Amazing-- a section of fun facts to keep you glued for more.