1/10 0 Points 0 Streak Science What is the primary reason that stars twinkle when observed from Earth? The movement of stars Earth's atmosphere Reflection from other planets Variability of starlight Other quizzes Trending, related, and recent quizzes you may be interested Entertainment Which 1994 animated movie features the song Hakuna Matata? Play Now History Which war is often referred to as “The Great War”? Play Now Technology What does “SSD” stand for in computer storage? Play Now Health & Fitness What is BMI short for? Play Now Sign up for Quiz Daily! By subscribing to Quiz Daily you are agreeing to our Privacy Policy and Terms of Use. Sign up