Why does the moon orbit earth?
a. the moon is less dense than earth.
b. the mass of earth is much greater than the moon.
c. the moon came into orbit around earth after earth was established.
d. the velocity of the moon in orbit is faster than the velocity of earth in orbit around the sun.

The graph shows the number of employed workers in the united states in nonfarm jobs from 2008 to 2013. the best conclusion that can be drawn from the graph is that the number of nonfarm jobs remained consistent over time. started going down in 2008. went up every year since 2008. started going down in 2010.