What caused eyjafjallajokull to erupt in 2010?

Does it rain on a full moon? What does meanwhile the fog and darkness thickened so mean? How can astronomers tell if a star is approaching or receding from earth? What does the word Artemis? In order to experience color constancy it is helpful to view things? How can you use sunspots to tell that the sun is rotating on its axis? Witch planet has moons and rings? What is the purpose of night vision? Ultraviolet wavelength telescope to look at distant galaxies? What was Buzz Aldrin chrildrens names? Can you see Auroras everywhere? In the sentence the sun had been shining for 15 hours before the rain started in verb phrase? Where is solar energy obtained from? Which of the following describes the size of the sun? What is a star in the sky and how does it contribute to the beauty of the night? Did davros create the daleks? Do tinted windows absorb some light? Where does the moon rise and where does it set? What day of the week was April 23 1616? What did Sputnik do?