Feeling Bright? This Sun Trivia Is Out Of This World! What is the approximate age of the Sun? 4.5 billion years 1 million years 100 million years 10 billion years None What is the primary source of energy for the Earth? Moon Stars Sun Comets None Which layer of the Sun's atmosphere is visible during a total solar eclipse? Photosphere Chromosphere Corona Radiative zone None What is the Sun mainly composed of? Hydrogen and helium Oxygen and carbon Nitrogen and sulfur Iron and nickel None What is the approximate surface temperature of the Sun? 5,000 degrees Celsius 10,000 degrees Celsius 15,000 degrees Celsius 20,000 degrees Celsius None Time's up Most Popular Most Popular
