Earth QuizTheLastDialogue EARTH QUIZ Test Your Knowledge Of The Earth With These Quizzes Earth Online Quiz for Kids and Adults #1. In which layer of atmosphere International Space Station orbits? Thermosphere Thermosphere Exosphere Exosphere Mesosphere Mesosphere Troposphere Troposphere Work Harder #2. What is the age of Earth? 6000 Years 6000 Years 4,500,000,000 Years 4,500,000,000 Years 12,000 Years 12,000 Years 4,000,000,000 Years 4,000,000,000 Years 5,000,000,000 Years 5,000,000,000 Years Work Harder #3. What is the name of upper most layer of Earth? Inner Core Inner Core Outer Core Outer Core Mantle Mantle Crust Crust Work Harder Finish Results Well Done. You Are Roaring Like A Lion Keep Working. Slow & Steady Wins The Race START NEW