Unit 1 CybersecurityText A BioVault Locks Up BiometricsText B New Chip Brings Military Security to Commercial Processors [Abridged] Unit 2 Science MysteryText A The Great Ketchup MysteryText B The Mystery of the Bermuda TriangleUnit 3 BiometricsText A How will Increasingly Sophisticated Biometric Technologies Affect You Text B Financial Institutions Evaluate Biometrics. Unit 4 PsychologyText A Gene plus Stress Equals Depression DebateText B Work： Kindness and CorporationUnit 5 EnergyText A Nuclear Fusion： Energy for the Future Text B Energy Independence and Climate Change： Linked But SeparateUnit 6 EcologyText A Extinction Crisis Looms in OceaniaText B Bio-InvadersUnit 7 AgricultureText A Optimistic Future for Agriculture PredictedText B Sustainable Agriculture： Perennial Plants Produce More； Landscape Diversity Creates Habitat for Pest EnemiesUnit 8 Arctic and AntarcticText A The Last Unexplored Place on Earth（Extracted）Text B Arctic Land Grabs could cause Eco-DisasterUnit 9 Endangered SpeciesText A Willdife Conservation 2.0Text B 10 Studies that Revealed the Great Global Amphibian Die-Off-and Some Possible SolutionsUnit 10 Genetic EngineeringText A Evolution by Intelligent DesignText B Building Better HumansUnit 11 Disease and TreatmentText A Mosquito and Cucumber Salad Anyone Text B Is Hypnosis Moving Closer to Mainstream Medicine Unit 12 Nudear PowerText A Oil Is Out； Is Nuclear In Text B The Necessity of Nuclear PowerUnit 13 Material ScienceText A The Kilogram Isn't What It Used to Be--It's LighterText B How to Build an Invisibility Cloak Unit 14 MarsText A Terraforming MarsText B The Truth about Water on Mars： 5 New FindingsUnit 15 Space TravelText A Russia's DarkHorse Plan to Get to MarsText B Solar SailingUnit 16 Mind and BrainText A The Big Similarities and Quirky Differences between Our Left and Right BrainsText B Is Patriotism a Subconscious Way for Humans to Avoid Disease.9Keys to Exercises