DK 
What gives an Ocean Motion? 

How deep is your knowledge of the Blue Planet? Do you know what makes a mountain and grows a glacier? What gives an Ocean Motion? is a new quiz ebook on all things Planet Earth. Are you an expert on our planet, from the poles to the equator? Includes fascinating facts, amazing illustrations and hundreds of questions, this quiz ebook could change your world.From the chilliest tundra to the driest desert these incredible Earth brainteasers are bound to test your knowledge. Your family will love the gorgeous graphics, while the fun quiz format will introduce you to a whole pack of jaw-dropping facts.