The Official Guide for GMAT Quantitative Review 2nd Edition
Improve your quantitative skills by focusing your GMAT preparation on the area where you need the most help. In addition to 75 new questions and answer explanations from GMAT exam experts, we’ve updated answer explanations for many questions to make them easier to follow and understand.
How many feathers does a bird have? Do birds sleep while in flight? Why do Blue-Footed Boobies have blue feet? How do migrating birds know where to go and how to get there? For these and hundreds of other questions, The Bird Watching Answer Book has expert answers. Written by Laura Erickson, science editor at the Cornell Lab of Ornithology, this book is the authoritative source for information on birds of all kinds.