Quiz 1 Answers

How long does the moon take to go around the Earth?27 d 7 h 43.1 min Wikipedia

Calculate  

Which galaxy do we live in? Milky Way

Is the Sun a star? Yes

What is a solar spot? Dark region on the surface Wikipedia

How many protons are in hydrogen? 1

What is a light year?  distance light travels in one year

How old is the Universe? 13.772 ± 0.059 billion years Wikipedia

Which is closer, Mexico or the Andromeda Galaxy? Mexico

Find x:   X=