Perfect for revision, this guide explains the unit requirements, summarises the content and includes specimen questions with graded answers. Edexcel AS Geography Student Unit Guide: Unit 1 New Edition Global Challenges provides ideal preparation for your unit exam: * Feel confident you understand the unit: this guide comprehensively covers the unit content and includes topic summaries, knowledge check questions and a reference index * Get to grips with the exam requirements: the specific skills on which you will be tested are explored and explained * Analyse exam-style questions: graded student responses will help you focus on areas where you can improve your exam technique and performance