Which sequence is correct when ordered by increasing size?
a. Earth, Solar System, Milky Way Galaxy, clusters of galaxies
b. Solar System, Earth, galaxy clusters, Milky Way Galaxy
c. Earth, Milky Way Galaxy, Solar System, galaxy clusters
d. Galaxy clusters, Solar System, Milky Way Galaxy, Earth
Question 2
If the Earth were represented as a basketball (10 in. in diameter) and the Moon as a baseball (3 in. in diameter) then, to order of magnitude, what size would best represent the diameter of the Sun?
a. 10 ft
b. 100 ft
c. 1000 ft
d. 10000 ft