Earth QuizTheLastDialogueEARTH QUIZTest Your Knowledge Of The Earth With These QuizzesEarth Online Quiz for Kids and Adults #1. What is the age of Earth? 6000 Years 4,500,000,000 Years 12,000 Years 4,000,000,000 Years 5,000,000,000 Years Work Harder#2. What is the name of the inner most layer of Earth? Mantle Core Crust Mesosphere Work Harder#3. Which one is the major ingredient of Air/ Earth’s atmosphere? Oxygen Argon Nitrogen Carbon diaoxide Work Harder Previous FinishResultsWell Done. You Are Roaring Like A LionKeep Working. Slow & Steady Wins The Race START NEW
